So your character's ability to perform won't just be based on what they're capable of, it'll also take into account the atmosphere they're in. So you might be able to sprint longer in one environment than you would in another one?

Yes. You have an oxygenation level for your blood and that affects your stamina. So if the oxygen in the environment is actually a lower percentage than it normally should be, you will be affected by that.

We really do just drill down into everything. If you think about it, you're in a fighter and you want to go take that Retaliator, you've got to make sure you have a helmet on before you go into that area or you're going to pop open the thing and start suffocating.