K2 bug!?

When I kill some1 who has the K2, it disappear, :P
So, I can't get it, lol... You know sometime, you need to change weapon (out of bullet)!
You should check it by yourself, kill some1 with a K2 and you will not find it, lol,

If he throw it, you'll see it, but when he die, nope!
It's not a major bug, but still!

Any mistake?, sorry, I'm french
Simrock007, leader of Damage Incorporated,