MW2 Glitch?
I encountered this a while ago. I think in January of 2010. Something like that.
Anyway, I was playing in Team Deathmatch in Estate. I decided to do some sniping, so I climbed onto the roof of the building, got prone and aimed down my scope. I didn't really like my line of sight from this position, so I went to move my position... only for it to do absolutely nothing. I realized I could turn fine, but I couldn't move an inch. After about a minute of this, I decided to film it, so I grabbed my camera and recorded this video. Shockingly, I wasn't killed before, during or after this video. I simply spent the rest of the game stuck in position on the roof. I haven't returned to this position to see if I experience this glitch again. It was a very strange thing to happen.