Well I wont be leaving games behind.. don't like doing that. I will be playing Brink, probably, more than I play BC2, Reach, Jedi Academy, Soul Calibur 4, etc etc...
Yea you also kept it out as its own weapon. Nice for being at the top of a ladder.
Or BF 2142 had the same thing but if you got X amount of kills with the knife they put your dogtag on it and it looked cooler. I collected so many dogtags (persons username that you knifed) in that game.....
I always liked how the Bad Company knives make chain link fences explode. Nothing like demanding a path be opened, and it explodes into shrapnel at your whim.