Recommend Me A Game!

[Dreaming Of Pandora]

Okay, Summer has rolled in and as usual it can get boring at times so Im looking for a new (PS3) game to entertain this unexcited gamer. Here's what Im looking for:

1. It's gotta be online: Preferably an online story co-op and definitely online "versus" matches and whatnot.

2. The game has to be good: spluh!

3. Has to be a shooter or RPG or both: like MW2 and ME, y'know.

4. It'd be nice if it had a good story.

5. It has to be something I wouldn't get bored of after completion.

Feel free to post any necessary trailers or videos if you want.

I leave you with this challenge to find that game as Im off.