osk, detector ,is nice but in no way is it definitive
my brother was one shotting me like crazy the other day,, funny thing is , my brother was using one of my psp's, the one thats not hacked.. its a nice tool! however it shouldnt take the place of common sence..

1. if you get caught by surprise coming around a corner,, you didnt get 1 shotted
you got owned!
2 if you are in a sniping game, standin in 1 spot for like 1 minute,, you didnt get 1 shotted
you got owned!!
3 if you and 2 other dudes got your back turned to someon shooting you while he or she is in the prone position, you didnt get 1 shotted
you got owned

the moral of the story is, try not to beg for a 1 shot detector just because you're tryin to find an excuse to hack