United States, Aug. 8 -- Marinette Marine Corp., Marinette, Wisconsin, is awarded a $43,114,274 cost-plus-fixed-fee and cost-only modification to previously awarded contract (N00024-20-C-2300) to exercise the option and provide funding for engineering and class design support for the Constellation-class Guided Missile Frigate. Work will be performed in Camden, New Jersey (42%); Arlington, Virginia (30%); Millersville, Maryland (9%); Marinette, Wisconsin (5%); Annapolis, Maryland (2%); Hanover, Maryland (2%); Walpole, Massachusetts (1%); Mobile, Alabama (1%); Evans, Georgia (1%); Segrate, Italy (1%); Rome, Italy (1%); Mathews, Louisiana (1%); Hauppauge, New York (1%); Columbus, Ohio (1%); Allentown, Pennsylvania (1%); and Arvonia, Virginia (...