The "fuel-cell" ghost is a non-canon ghost variant featured in some custom maps of Halo: custom edition. A fairly unknown vehicle, it is simply a ghost with a fuel-rod launcher on the right wing of it, it is the same as the handheld version, save for unlimited ammo, and it's shots don't curve but fly straight. it is used on rare occasions, and few know about it, those who do know it is extremely effective vs. slow flying vehicles, since shots home in. it is easily considered a lighter variant of the AA wraith featured in halo 3. Retrieved from " http://halo.wikia.com/wiki/Fuel-cell_ghost"