Scratch

probably the best massive multiplayer game on the PS3, with up to 32 players (via online play) and the ability to have 3 friends join you offline also 3 booster packs with new maps, map layouts, and vehicles, and warhawk costs a total of $45 (without booster packs [only game]: $30)

* with pack Omega dawn
** with pack broken mirror
*** with pack tau crater (somethin like that)

vehicles:
tank
jeep
fighter jet
dropship *
APC **
jetpack *** (for infantry)

infantry weaponry:
pistol (unlimited ammo)
knife (one hit kill)
automatic rifle (basic weapon)
flamethrower (all-round good weapon, even against tanks)
rocket launcher (lock-on for tanks and aircraft)
wrench (heals vehicles and damages enemy vehicles, also takes over knife)
mines (the funnest toy you'll ever use, other than the jetpack)
healers (heals peeps on your team and damages enemies, takes over mines)
binoculars (calls an air strike, and yes there is big boom)
sniper rifle (OK pretty much a fav weapon of most peeps, however it's difficult to use)
grenade (powerful, but hard to hit with)

maps:
badlands (one of the funnest maps, great for everything)
archipelego (interesting way to play zones, but really good for CTF as long as your playing on the main island only)
vapor glacier ** (icey cold stage, great for TDM)
Omega Factory * (really sad no one uses this stage, it's really great)
tau crater *** (can't judge, just got the booster pack)
destroyed capital (it's good for CTF only if you can handle dozens of annoying mines)
there's one more I don't know what it's called though

modes:
death match (don't, it's just dum)
team death match (a basic game)
capture the flag (awesome, if you can capture the flag you're a hero [I've done it I think 4 times now])
zones (really different from the rest, a new fun way to play massive multiplayer!)
hero (it's OK, but not totally fun)
collection (better than hero, but still not that great)