PC ▁versions ▁both ▁carried ▁the ▁ 3 0 / 5 0 ▁combination ▁and ▁the ▁only ▁difference ▁between ▁them ▁was ▁roles . ▁L R V s , ▁which ▁carried ▁a ▁crew ▁of ▁ 2 ▁or ▁ 3 ▁( cre w ▁commander , ▁driver ▁and ▁sometimes ▁operator / ob server ), ▁were ▁used ▁in ▁the ▁sab re ▁( re con ) ▁troops ▁of ▁the ▁Caval ry ▁regiment ▁and ▁the ▁recon ▁tro op ▁of ▁the ▁Arm oured ▁regiment . ▁A PC s ▁carried ▁a ▁crew ▁of ▁ 2 ▁plus ▁several ▁dis mount s , ▁either ▁inf antry , ▁assault ▁troops , ▁engine ers ▁or ▁other ▁troops . ▁In ▁pract ise , ▁an ▁L R V ▁was ▁also ▁perfectly ▁capable ▁of ▁carrying ▁troops , ▁though ▁in ▁perhaps ▁somewhat ▁more ▁cr amp ed ▁conditions ▁as ▁L R V s ▁often ▁carried ▁additional ▁stores ▁and ▁am mun ition ▁and ▁had ▁seats ▁removed ▁and ▁replaced ▁with ▁storage ▁lock ers . ▁For ▁a ▁short ▁period ▁of ▁time ▁in ▁Vietnam , ▁the ▁A ircraft ▁Arm aments ▁In cor por ated ▁Model ▁ 7 4 C ▁Cup ola / Command ▁Station ▁was ▁used , ▁but ▁it ▁was ▁quickly ▁replaced ▁by ▁the ▁T 5 0 . ▁Also ▁used ▁by ▁the ▁New ▁Zealand ▁Army ▁until ▁the ▁M 1 1 3 ▁was ▁replaced ▁in ▁ 2 0 0 5 . ▁The ▁T 5 0 ▁tur ret ▁was ▁initially ▁fitted ▁with ▁an ▁optical ▁sight , ▁however ▁in ▁later ▁years ▁this ▁was ▁removed ▁and ▁the ▁guns ▁were ▁sole ly ▁aim ed ▁using ▁r anging ▁burst s ▁of ▁