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Exhibit 23.3

Consent of Independent Registered Public Accounting Firm

        We have issued our reports dated March 10, 2010 with respect to the consolidated financial statements and internal control over financial reporting of Kratos Defense & Security Solutions, Inc. included in the Annual Report on Form 10-K for the year ended December 27, 2009, which are incorporated by reference in this Registration Statement. We consent to the incorporation by reference in the Registration Statement of the aforementioned reports, and to the use of our name as it appears under the caption "Experts."

/s/ GRANT THORNTON LLP
San Diego, California
June 28, 2010

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Exhibit 23.3

Consent of Independent Registered Public Accounting Firm