Create part-based damage for vehicles.

Make it so if a specific part of a vehicle is damaged, it affects the vehicle, the main body of a vehicle is general 1x damage, attacking anything that allows the vehicle to move (propellers, wheels and motors/engines) can immobilize the vehicle and require an engineer to fix that part while also having a 2.5x or 3x damage multiplier, attacking weapons or turrets can increase an overheat multiplier and disable the weapon if enough damage is delt to it.