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ManTech Advanced Systems International, Inc., of Herndon, Virginia, protests the· Department of the Air Force's award of an indefinite-delivery, indefinite-quantity (IDIQ) contract, and issuance of associated task orders, to General Dynamics One Source, LLC (GDOS), of Falls Church, Virginia, pursuant to request for proposals (RFP) No. FA8240-19-R-3501. The solicitation sought proposals to provide security support services for classified programs throughout the world. ManTech, the incumbent contractor, challenges the agency's evaluation of GDOS's proposed labor rates; evaluation of ManTech's technical proposal; and best-value tradeoff determination.
We sustain the protest in part and deny it in part.