1 9 0 s , ▁although ▁his ▁claim ▁report ▁for ▁the ▁second ▁kill ▁cred ited ▁half ▁to ▁Nor ley . ▁A ▁review ▁of ▁his ▁gun ▁camera ▁film , ▁however , ▁resulted ▁in ▁the ▁award ▁to ▁G arrison ▁of ▁both ▁vict ories . ▁By ▁February ▁ 1 0 ▁he ▁had ▁scored ▁his ▁fifth ▁kill ▁and ▁made ▁ace , ▁followed ▁by ▁a ▁sixth ▁victory ▁on ▁February ▁ 2 5 , ▁during ▁an ▁esc ort ▁mission ▁supporting ▁the ▁Big ▁Week ▁bom ber ▁off ensive . ▁ ▁The ▁next ▁day ▁his ▁squad ron ▁began ▁conversion ▁to ▁the ▁P - 5 1 B ▁Must ang ▁f ighter . ▁On ▁March ▁ 3 , ▁ 1 9 4 4 , ▁the ▁ 4 th ▁F ighter ▁Group ▁fle w ▁a ▁bom ber ▁support ▁mission ▁to ▁Berlin ▁for ▁the ▁first ▁time , ▁resulting ▁in ▁several ▁large ▁aer ial ▁engag ements . ▁G arrison ▁was ▁part ▁of ▁a ▁flight ▁of ▁nine ▁P - 5 1 s ▁of ▁the ▁ 4 th ▁eng aging ▁more ▁than ▁ 6 0 ▁Luft wa ffe ▁f igh ters ▁attack ing ▁bom bers ▁at ▁ 2 4 , 0 0 0 ▁feet ▁near ▁W itten berg . ▁Three ▁of ▁the ▁flight , ▁including ▁G arrison , ▁were ▁shot ▁down . ▁Despite ▁losing ▁his ▁aircraft ' s ▁super char ger ▁and ▁having ▁three ▁of ▁its ▁four ▁guns ▁jam , ▁G arrison ▁shot ▁down ▁an ▁F w ▁ 1 9 0 ▁and ▁received ▁a ▁" prob able " ▁for ▁down ing ▁a ▁Mess ersch mitt ▁B f ▁