Oxygen

[ruxtmp]

I think it could be easily but somewhat unrealistically modeled. The whole O2 starvation, fatigue, and G modeling would be an approximation in any sim.

Each pilot (character) would start with a base human model. There would be four models rookie, average, veteran, and ace. The rookie would start with a model that depicts the average human. Each progressive level would be ever so slightly better. As you gain experience your physical attributes would increase (incentive to not get shot down). Also it would be nice to have some of your phyical characteristics impact your human model. A fatigued pilot does not respond well to lack of O2 or Gs. Also wounded pilots should have their ability to perform functions liited. I know in IL2 that with a red haze i can continue to fight with no ill effect for at least a few minutes.

Modelling lack of O2 could be like some of the concusion effects in COD4 (losing vision and ringing ears) or maybe something like a simple text saying you are having difficulty breathing.