Support weapon

Halo 3 introduces a new class of weapons called support weapons. While carrying there, your view switches to third person and you walk slower. You are generally more powerful, but also more vulnerable and much less versatile.

Confirmed Weapons

 * Missile Pod
 * AIE-486H Heavy Machine Gun
 * Plasma Cannon - As seen in leaked EGM scans
 * Gravity Hammer

Speculated Weapons

 * Flamethrower Seen in Halo 3 Beta code (though it may just be an ordinary weapon)
 * Hunters' Fuel Rod Cannon