M12A1 Rocket Warthog
From Halopedia, the Halo wiki
The M12A1 Warthog LAAV (Light Anti Armor Vehicle) is only seen on Halo PC, and shoots rockets instead of the machine gun shots. The turret can shoot three before reloading, but like all projectile weapons, it can be reloaded before the magazine capacity is depleted. The rocket Warthog is black in color with yellow stripes lined through the base.
In Halo 2, the M12A1 Warthog LAAV does not make an appearance, but there is another variant of the Warthog.
