I dont know if its "old" but hey, here's new Halo 3 stuff:
Weapons
Magnum - The Magnum is much improved since Halo 2, dishing out slower, more punishing shots. But it's still not back to Halo 1 strength, as the clip currently carries just eight rounds and you can't zoom in. Still a nice, precise choice for dual-wield combos.
Energy Sword - The infamous Sword gets two tweaks aimed at balancing its overwhelming power. One change is a brief weapon-switch delay. The second adjustment is more controversial: the Energy Sword now has an ammo meter that depletes with each attack, which keeps players from hoarding it indefinitely.
Its not really "new" , its the same usgage for single player, its just now added for Muti play now.
Vehicles
Wraith - The lumbering Covenant Wraith returns with a new player-operated secondary turret. It's helpful for driving off boarding attempts.
Brute Chopper - This ugly, jagged Brute Chopper looks like something Firefly's Reavers might drive into battle. Its twin cannons nad heavy, blade-like chassis can pulverize lesser vehicles in a nanosecond.
Equipment
Radar Jammer - Hurl this item into a fight and watch as chaos and confusion engulf friend and foe alike. The jammer scrambles the radar of all nearby players and triggers disco-like light flashes to further disorient your prey.
Maps
Shrine - A UNSC battle cruiser looms menacingly over Shrine's sprawling sand dunes. Shrine is the largest map ever to appear in a Halo game, so Bungie put a key emphasis on vehicle-on-vehicle combat. Shrine has few ties to older Halo 2 maps, but its massive size recalls Relic.
Epitaph - Epitaph is an arcane Forerunner cathedral-like structure that towers above the surrounding wasteland. The central killing floor is crisscrossed with elevated walkways, exterior hallways, and lifts. It's a spiritual successor to Halo 2 maps like Colossus, Gemini, and Midship.
Last Resort - Zanzibar, one of Halo 2's most beloved maps, has been rebuilt and rechristened Last Resort for Halo 3. This industrial site is almost twice as big, with a less cluttered internal layout and more paths into the flag room.
Secret Map - Bungie sneakily sent us two mysterious concept paintings labeled only as "Work in Progress Map." We see the icey motif and pray for a new Lockout, but only Bungie knows the truth.
http://i10.photobucket.com/albums/a106/Hank101/my terylevel.jpg
Enjoy!