Good Offline Multiplayer?

So I'm looking to buy a good offline multiplayer game, but I don't really know of any. I would particularly like a shooter. Any suggestions?

Do either R6V or GRAW2 have offline multiplayer?

Eh, I've played UT3 and it just isn't my type of game. Thanks though.

Any other suggestions, or an answer to R6V/GRAW2?

Yes R6V and GRAW 2 both have offline multiplayer. I prefer these over Unreal, but it's personal choice.Devourment423

Awesome. What kind of mode(s)? Are they just co-op campaign, or are there other options?