Granted, the fuel burn would have to be adjusted due to the limited driving and wormholes, but why have fuel bunkers, restrictions, and fuel loadouts for something which doesn't use it?
Looking at the GVs, and the 163, I see 2 difficult to believe fuel setups which seem rather silly compared to everything else. The GV damage model is also supposed to be very complex and detailed, so why not use gas, and add fuel damage, fires, etc that all the aircraft suffer? I just happened to see a thread on GV fuel, and I thought I'd suggest that.
Unlimited gas, unlimited ammo, unlimited planes, but fuel burn, damage, and fires are modelled for them. Why wouldn't they impliment it?