Should I get Unreal Tournament 3, Call of Duty 4, or Rainbow Six: Vegas 2 for their multiplayer? I have a $100 Dell credit so I'm planning on buying two of those just for their multiplayer. I think I'm definitely getting Unreal Tournament 3 since the demo is awesome. I really like the single-player campaign in Call of Duty 4, but I don't know if I should get that or Rainbow Six: Vegas 2. What do you guys think?