360 games that are co-op online?

My friend and I just beat gears online using the co-op.  We had a blast playing.  Can someone list any or all the games that are for the 360 that have the co-op feature for online play?  We are looking for some to play next.  Thanks!

i dont know any others but i know that when mass effect is gonna come out june 5th its gonna co-opinsane_metalist

Graw
Graw 2
Rainbow Six Vegas
Gears of War
Call of Duty 3
Perfect Dark Zero (I think)

PD0, doom, Crackdown, Graw2.limpbizkit818

cod3 has co-op?icecream76239

You can play cod3 online multiplayer splitscreen unlike COD2 

[QUOTE="icecream76239"]cod3 has co-op?kcpp2b

You can play cod3 online multiplayer splitscreen unlike COD2 

I would consider Multiplayer and Co-Op completely different animals. In my book, CoD3 is not Co-Op.  You're not cooperating at accomplishing a single goal as part of the storyline.

Doom the arcade game has Co-Op?booomer69

Yes, 4 players can play co-op on Live or split-screen.

[QUOTE="booomer69"]Doom the arcade game has Co-Op?Armor_Biff

Yes, 4 players can play co-op on Live or split-screen.

Rainbow Six Vegas. :)Holden14

Giggity... this is the one you want, TC.