Offline shooter game

Hey all!

I'm looking for an FPS that has OFFLINE multiplayer VS. mode. It can have co-op, but I'm looking for offline/split-screen VS. mode.

When I had my Xbox, my friend and I LOVED playing Halo 2. We would play it for HOURS. So we're looking for something like that. An FPS that is extremely fun. I was thinking COD4 as I have played it and enjoyed it a lot, but my friend hasn't. Are there any others out there I should be aware of?

My limit is $50. Actually, if you kept it under $30, that would be so great, but I'll be trading in Fallout 3 (it's great, just not for me) and Resistance: FOM (I dunno why, but my friend and I just don't like the vs. mode). Thanks for all help!

Goldeneye 007. It's great. Oh yeah almost forgot, you also need to buy an N64.

Damn man, I cannot honestly think of ONE. Sorry!

Unreal Tournament 3

HAZE? The multiplayer is actually pretty fun

You can get both games for $10 each