Me and my brother found two glitches while playing multiplayer in Timesplitters 2..
1. Die Instantly: In TS2, choose multiplayer, go to the Aztec level, and choose a weapon set that has a flamethrower in it. Begin playing. In game, get a flamethrower, and stand right up against a plant that catches fire, and use the flamethrower to set the plant on fire. If you do this correctly, you will die instantly WITHOUT catching on fire at all. Weird.
2. Stand in Midair!!: In TS2, choose multiplayer, shrink, and go to the Compound level. Begin Playing. Let your character shrink a little bit by being killed/not attacking, and then in the main building that has a staircase leading to a little room (The staircase that has NO turns) go up the stairs, with your character on the left side of them so that it appears that they are halfway on the stairs. Go up, until you reach an area that appears as if you are standing on nothing at all. This area is actually the little room at the top of the stairs, but you won't be able to see any of the room's walls, or the room's ceiling and floor. Weirder.
NOTE: If these don't work for you it's probably because of either:
[a] The copy of TS2 I have is funky.
I'm bad at explaining, so you didn't understand how to do it the right way because of my Cr*y explaining.
End of Story.**