just playing a game of sabotage and i found out a glitch that IW dont know i managed to use my normal gun in last stand here is how you do it:-
1.you have to have care package in your hand and make sure you have last stand on
2.get shot down with care package equipped
3.as soon as you go down you should have your main weapon out
i think that this is a easy way to get least stand kill and it works
if work for you leave a comment