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  <xsd:element id="ktos_ImpairmentChargesAndAdjustmentsToUnusedOfficeSpaceLiability" name="ImpairmentChargesAndAdjustmentsToUnusedOfficeSpaceLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_ImpairmentOrDisposalOfLongLivedAssetsAndCertainIntangibleAssetsPolicyTextBlock" name="ImpairmentOrDisposalOfLongLivedAssetsAndCertainIntangibleAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_IncomeTaxReconciliationChangesToIndefiniteLifeItemsAndSeparateStateDeferredTaxes" name="IncomeTaxReconciliationChangesToIndefiniteLifeItemsAndSeparateStateDeferredTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_IncomeTaxReconciliationTransactionCosts" name="IncomeTaxReconciliationTransactionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_IntangibleAssetsExcludingGoodwillGross" name="IntangibleAssetsExcludingGoodwillGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ktos_IntegralSystemsIncMember" name="IntegralSystemsIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_InterestExpenseIncomeNet" name="InterestExpenseIncomeNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_KratosGovernmentSolutionsMember" name="KratosGovernmentSolutionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_KratosUnmannedSystemsMember" name="KratosUnmannedSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_LineOfCreditFacilityMaximumPossibleBorrowingsSubjectToApplicationAndBankApproval" name="LineOfCreditFacilityMaximumPossibleBorrowingsSubjectToApplicationAndBankApproval" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ktos_LongTermDebtAndUnamortizedPremiumNoncurrent" name="LongTermDebtAndUnamortizedPremiumNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ktos_LossOnExtinguishmentOfDebtOperatingActivities" name="LossOnExtinguishmentOfDebtOperatingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_NonUSMember" name="NonUSMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_NoncashInvestingAndFinancingActivitiesContingentAcquisitionConsiderationLiabilities" name="NoncashInvestingAndFinancingActivitiesContingentAcquisitionConsiderationLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ktos_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationCommonStockAndStockOptionsIssuedValue" name="NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationCommonStockAndStockOptionsIssuedValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ktos_OperatingIncomeLossRelatedtoRetrofits" name="OperatingIncomeLossRelatedtoRetrofits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_OperatingLossCarryforwardAxis" name="OperatingLossCarryforwardAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_OperatingLossCarryforwardDomain" name="OperatingLossCarryforwardDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_OperatingLossCarryforwardsFederalAnnualUtilizationLimitAfterYearFive" name="OperatingLossCarryforwardsFederalAnnualUtilizationLimitAfterYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ktos_OperatingLossCarryforwardsFederalAnnualUtilizationLimitFiveYearsSucceedingInitialOwnershipChange" name="OperatingLossCarryforwardsFederalAnnualUtilizationLimitFiveYearsSucceedingInitialOwnershipChange" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ktos_OtherLiabilitiesNotSeparatelyDisclosedCurrent" name="OtherLiabilitiesNotSeparatelyDisclosedCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ktos_OtherLiabilitiesNotSeparatelyDisclosedNoncurrent" name="OtherLiabilitiesNotSeparatelyDisclosedNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ktos_PaymentsForProceedsFromInvestmentInAffiliatedCompanies" name="PaymentsForProceedsFromInvestmentInAffiliatedCompanies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ktos_ProceedsFromIssuanceOfCommonStockGross" name="ProceedsFromIssuanceOfCommonStockGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_ProceedsFromPaymentsForOtherFinancingActivitiesNotSeparatelyDisclosed" name="ProceedsFromPaymentsForOtherFinancingActivitiesNotSeparatelyDisclosed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_ProceedsFromRepaymentsOfLongTermLinesOfCredit" name="ProceedsFromRepaymentsOfLongTermLinesOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_ProductWarrantiesMember" name="ProductWarrantiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ProductWarrantyAccrualPaymentsRevenueRecognizedAndOther" name="ProductWarrantyAccrualPaymentsRevenueRecognizedAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_ProductWarrantyAccrualWarrantyTerm" name="ProductWarrantyAccrualWarrantyTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_PublicSafetyAndSecurityMember" name="PublicSafetyAndSecurityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_RedemptionDateAxis" name="RedemptionDateAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_RedemptionDateDomain" name="RedemptionDateDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_RedemptionPeriodBeforeMay152016Member" name="RedemptionPeriodBeforeMay152016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_RedemptionPeriodFourMember" name="RedemptionPeriodFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_RedemptionPeriodOneTimeBeforeMay152016Member" name="RedemptionPeriodOneTimeBeforeMay152016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_RedemptionPeriodThreeMember" name="RedemptionPeriodThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_RestrictedCashAndCashEquivalentsAtCarryingValuePrepaidExpenseAndOtherAssetsCurrent" name="RestrictedCashAndCashEquivalentsAtCarryingValuePrepaidExpenseAndOtherAssetsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ktos_RevenueRecognitionNumberOfFixedPriceContractTypes" name="RevenueRecognitionNumberOfFixedPriceContractTypes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_RevenueRecognitionNumberOfRevenueContractTypes" name="RevenueRecognitionNumberOfRevenueContractTypes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_RevenueRecurringInNaturePercentOfBusiness" name="RevenueRecurringInNaturePercentOfBusiness" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ScheduleOfCondensedStatementOfOperationsAndComprehensiveIncomeTableTextBlock" name="ScheduleOfCondensedStatementOfOperationsAndComprehensiveIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ScheduleOfFutureMinimumLeasePaymentsCapitalAndOperatingLeasesTableTextBlock" name="ScheduleOfFutureMinimumLeasePaymentsCapitalAndOperatingLeasesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ScheduleOfInterestExpenseNetTableTextBlock" name="ScheduleOfInterestExpenseNetTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ScheduleOfUnusedFacilitiesAccrualRollForwardTableTextBlock" name="ScheduleOfUnusedFacilitiesAccrualRollForwardTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_SellingGeneralAndAdministrativeExpenseBusinessAcquisitionRelatedCostsAndOtherImpairmentCharges" name="SellingGeneralAndAdministrativeExpenseBusinessAcquisitionRelatedCostsAndOtherImpairmentCharges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_SevenPercentSeniorNotesDue2019Member" name="SevenPercentSeniorNotesDue2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndOtherThanOptionsOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndOtherThanOptionsOutstandingNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="ktos_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueAndExercisesInPeriodTotalIntrinsicValueTableTextBlock" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueAndExercisesInPeriodTotalIntrinsicValueTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAwardMinimumAnnualEmployment" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAwardMinimumAnnualEmployment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAwardMinimumWeeklyEmployment" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAwardMinimumWeeklyEmployment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_ShareBasedCompensationCostMember" name="ShareBasedCompensationCostMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodButNotReleasedWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodButNotReleasedWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestedButNotReleased" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestedButNotReleased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_SignificantAccountingPoliciesDisclosureLineItems" name="SignificantAccountingPoliciesDisclosureLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_SignificantAccountingPoliciesDisclosureTable" name="SignificantAccountingPoliciesDisclosureTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_SignificantCustomersDisclosureTextBlock" name="SignificantCustomersDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_StandardAndExtendedProductWarrantyPolicyPolicyTextBlock" name="StandardAndExtendedProductWarrantyPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_StockOptionsAndRestrictedStockUnitsMember" name="StockOptionsAndRestrictedStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_StockOptionsAndStockAwardsMember" name="StockOptionsAndStockAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_StopLossInsuranceAnnualCoverageLimit" name="StopLossInsuranceAnnualCoverageLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_StopLossInsuranceNumberOfClaimsExceedingAnnualCoverageLimit" name="StopLossInsuranceNumberOfClaimsExceedingAnnualCoverageLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_SwingLineLoanMember" name="SwingLineLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_TaxDeductionRealizationPeriod" name="TaxDeductionRealizationPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_TenPercentSeniorNotesDueJune2017Member" name="TenPercentSeniorNotesDueJune2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_ThresholdPeriodForChangeInAllowedAnnualAmountOfOperatingLossCarryforwardToBeRecognized" name="ThresholdPeriodForChangeInAllowedAnnualAmountOfOperatingLossCarryforwardToBeRecognized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_TwoThousandFourteenPlanMember" name="TwoThousandFourteenPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_USGovernmentMember" name="USGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_UninsuredRiskHealthSelfInsuranceMember" name="UninsuredRiskHealthSelfInsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_UninsuredRiskWorkersCompensationMember" name="UninsuredRiskWorkersCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestBenefitReversalsOfPriorPositions" name="UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestBenefitReversalsOfPriorPositions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ktos_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateDeferredTaxAssets" name="UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateDeferredTaxAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ktos_UnusedOfficeSpaceAccrualAdjustment" name="UnusedOfficeSpaceAccrualAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_VehiclesFurnitureAndOfficeEquipmentMember" name="VehiclesFurnitureAndOfficeEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
