LAU-65D/SGM-151 missile pod
From Halopedia, the Halo wiki
The Missle Pod will be a new weapon in Halo 3 that target tracks vehicles, since the Rocket Launcher does not have this capability in Halo 3. When picked up it goes to a third-person view just like the Chain gun. The only maps that contain this weapon are Valhalla and High Ground .
