Planetside 2 from sony, very addictive fps also it's free to play, huge battles, a-la Battlefield but bigger maps (continents) that 3 distinct factions are trying to take over. Multiple careers (engineer, light/heavy assault, medic, etc), highly customizable, you can buy your weapons, sights, upgrades, etc with real cash, or by cert points which are earned by experience. so you can have everything available for 'free' (except some superficial (cosmetic) stuff like camo for weapons/vehicles, horns for vehicles, suits for your characters, etc. stuff you really don't need) very nice game. takes a while to download (~8 gb). The game is updated and upgraded every now and then, including new weapons, bases, add-ons etc.
I chose the new conglomerate as a faction, the other ones seemed kinda dandy :P lol.