▁Ryan ) ▁of ▁the ▁B AU ▁team ▁a ▁package ▁containing ▁a ▁p ager ▁which ▁he ▁uses ▁to ▁notify ▁Raw son ▁of ▁his ▁next ▁k ills ; ▁he ▁signs ▁the ▁package ▁" Car los ▁H ath cock ", ▁which ▁Raw son ▁explains ▁by ▁sharing ▁the ▁tale ▁of ▁H ath cock ' s ▁ 9 3 ▁k ills ▁and ▁an ▁incident ▁during ▁the ▁Vietnam ▁War ▁in ▁which ▁he ▁was ▁put ▁up ▁against ▁the ▁best ▁sni per ▁of ▁the ▁N VA , ▁known ▁only ▁as ▁" C ob ra " ▁( th us ▁m im ick ing ▁the ▁incident , ▁since ▁Raw son ▁is ▁also ▁a ▁sk illed ▁sni per ). ▁In ▁J AG , ▁Season ▁ 1 , ▁E pisode ▁ 1 5 ▁(" High ▁Gr ound "), ▁G unn ery ▁Serge ant ▁Ray ▁Cro ck ett ▁( port rayed ▁by ▁Stephen ▁Mc H att ie ) ▁is ▁based ▁on ▁H ath cock . ▁Cro ck ett ▁is ▁a ▁sni per ▁instruct or ▁at ▁Quant ico , ▁Virginia , ▁who ▁bel ieves ▁he ▁is ▁being ▁" for ced ▁out ▁of ▁the ▁service " ▁short ▁of ▁his ▁ret irement . ▁He ▁makes ▁the ▁statement ▁that ▁he ▁" w rote ▁most ▁of ▁the ▁book " ▁on ▁sni per ▁operations . ▁The ▁character ▁R abb ▁refers ▁to ▁an ▁incident ▁where in ▁Cro ck ett ▁p inned ▁down ▁an ▁N VA ▁unit ▁by ▁killing ▁their ▁officer ▁with ▁the ▁first ▁shot . ▁In ▁Be ir ut , ▁Cro ck ett ▁used ▁a ▁Brow ning ▁. 5 0 ▁to ▁take ▁down