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  <xsd:element id="ktos_EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActAmount" name="EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActTransitionTaxonAccumulatedForeignEarningsAmount" name="EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActTransitionTaxonAccumulatedForeignEarningsAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_EmployeeStockPurchasePlanMember" name="EmployeeStockPurchasePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_EmployeeStockPurchasePlanOfferingPeriod" name="EmployeeStockPurchasePlanOfferingPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_EntityWideDisclosureOnGeographicAreasAssetsInForeignCountries" name="EntityWideDisclosureOnGeographicAreasAssetsInForeignCountries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ktos_EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountriesPercentage" name="EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountriesPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_FTTCoreLLCMember" name="FTTCoreLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_FTTIncMember" name="FTTIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_FavorableOperatingLeaseMember" name="FavorableOperatingLeaseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" name="FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_FinanceLeaseRightofUseAssetbeforeAccumulatedAmortization" name="FinanceLeaseRightofUseAssetbeforeAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ktos_FloridaTurbineTechnologiesInc.Member" name="FloridaTurbineTechnologiesInc.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_HerleyIndustriesIncMember" name="HerleyIndustriesIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <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_IncomeTaxReconciliationChangesToIndefiniteLifeItemsAndSeparateStateDeferredTaxes" name="IncomeTaxReconciliationChangesToIndefiniteLifeItemsAndSeparateStateDeferredTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_IncomeTaxReconciliationReleaseOfValuationAllowanceBusinessCombination" name="IncomeTaxReconciliationReleaseOfValuationAllowanceBusinessCombination" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_IncreaseDecreaseInOperatingLeaseLiabilities" name="IncreaseDecreaseInOperatingLeaseLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_InternationalCustomerMember" name="InternationalCustomerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_LineofCreditFacilityCovenantTermsMinimumPercentageofBorrowingBaseorTotalCommitmentAmount" name="LineofCreditFacilityCovenantTermsMinimumPercentageofBorrowingBaseorTotalCommitmentAmount" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ktos_LostContractOpportunitiesPeriod" name="LostContractOpportunitiesPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_MeasurementInputRoyaltyRateMember" name="MeasurementInputRoyaltyRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_NonUSGovernmentMember" name="NonUSGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_NumberOfLostContractOpportunities" name="NumberOfLostContractOpportunities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_OperatingAndFinanceLeaseRightofUseAssetAmortization" name="OperatingAndFinanceLeaseRightofUseAssetAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" name="OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_PaymentstoAcquireBusinessesAmountToBePaid" name="PaymentstoAcquireBusinessesAmountToBePaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ktos_PaymentstoAcquireBusinessesGrossIncludingAmountsToBePaid" name="PaymentstoAcquireBusinessesGrossIncludingAmountsToBePaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ktos_PaymentstoAcquireBusinessesPaymentPeriod" name="PaymentstoAcquireBusinessesPaymentPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetAccumulatedDepreciationandAmortization" name="PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetAccumulatedDepreciationandAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ktos_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetafterAccumulatedDepreciationandAmortization" name="PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetafterAccumulatedDepreciationandAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ktos_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization" name="PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ktos_PublicSafetyAndSecurityMember" name="PublicSafetyAndSecurityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_RevenueRemainingPerformanceObligationExpectedTimingofSatisfactionPercentage" name="RevenueRemainingPerformanceObligationExpectedTimingofSatisfactionPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_SaleofStockConsiderationReceivedonTransactionGross" name="SaleofStockConsiderationReceivedonTransactionGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ktos_ScheduleOfInterestExpenseNetTableTextBlock" name="ScheduleOfInterestExpenseNetTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" 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 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 abstract="true" id="ktos_SixPointFivePercentSeniorSecuredNotesDue2025Member" name="SixPointFivePercentSeniorSecuredNotesDue2025Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 abstract="true" id="ktos_SwingLineLoanMember" name="SwingLineLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_TemporaryEquityIncreasefromBusinessCombination" name="TemporaryEquityIncreasefromBusinessCombination" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_TforCMember" name="TforCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_UnitedStatesCommercialAndOtherCustomersMember" name="UnitedStatesCommercialAndOtherCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_UnitedStatesGovernmentMember" name="UnitedStatesGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ktos_UnrecognizedTaxBenefitsDecreaseResultingfromDisposition" name="UnrecognizedTaxBenefitsDecreaseResultingfromDisposition" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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 abstract="true" id="ktos_VehiclesFurnitureAndOfficeEquipmentMember" name="VehiclesFurnitureAndOfficeEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_WeightedAverageDiscountRatePercentAbstract" name="WeightedAverageDiscountRatePercentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ktos_WeightedAverageRemainingLeaseTermAbstract" name="WeightedAverageRemainingLeaseTermAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
