Halo: Reach's "Invasion" mode were shown off exclusively in last night's episode of GameTrailers TV, with Bungie additionally dishing some deets about the game we'd yet to hear. As we already know, Invasion is a game mode that's only available in Boneyard (also scantly detailed until now) and, as promised, features a ton of vehicles. The multi-tiered level unlocks in "three phases (similar to Bad Company 2's "Rush" mode), with various weapon loadouts and vehicles becoming available alongside it.
Among the smattering of new footage, Bungie reps introduce the human grenade launcher and plasma launcher, two exciting looking additions to the Halo arsenal. Unfortunately, when pressed on whether or not ODST's Firefight mode would be making a return appearance in Reach, Bungie's Chris Carney says that the mode "is not in the beta" and he's "not sure what those guys have planned." As you might expect, there's also a tease that we'll hear more about the game (campaign mode specifically) "in June."