Battlefield has all kinds of expansion mods (Downloadable modifications)
Pirates mod, old pirate ships, swords, muskets etc.
Turbo Mod, everything has turbo boosters...
Galactic Conquest Mod...Star Wars style weapons and vehicles
Interstate 82 mod...sports cars with weapons.
The Original...driveable tanks, fighters, bombers, ships, jeeps, and more.
Desert combat mod rules....
Apaches, Hinds, Blackhawks, f16s, f15s, f14, c130 gunships, mirage fighters, mig 29, Su25, a10, humvee, amphibious vehicles, stinger missile launchers, SCUDs, guided missiles, many modern tanks, and lots of other modern goodies, the game doesnt get boring fast. fun at LAN Parties, Online, and Singleplayer.
Graphics are great also. (I would recommend at least a 700 MHZ computer with a 32 mb video card and 512 MB ram...) (I have a 1 GHZ, 512 RAM, 64 MB TI4200, windows xp)