The damage model in "WWIIOL "is realism based, within the limits of modern technology, it simulates real world kinetic damage to the game world. Vehicles are modeled with their essential critical components, such as engine, fuel tanks, etc. The components interact as if they were the real machine. For example, a punctured fuel tank will cause loss of fuel which will eventually cause the engine to run out of fuel causing the engine to stop. Leaking fuel within the vehicle can be set on fire by subsequent or existing damage to other parts of the vehicle, resulting in the tank "brewing up" and possibly exploding. Damaged components also provide feedback into the simulation model; For example, for aircraft, damage to flight surfaces will result in increased drag and reduced performance of the vehicle. Vehicles are modeled, within reasonable technical limits, to historically accurate detail.