Cortana and Giofosho.... I realize he is on a large human ship... that is why in my original post I stated that "he should have no access to human vehicles/weapons other than what he takes with him off the wreck."
After he has used up whatever ammo you can carry in game, those weapons should be useless. ie. there should be no where that he can find ammo for human weapons if on an alien planet, on a regular basis anyways. I understand that if, like Pope 138 said that if there are other crashed human ships on the planet that he may stumble upon them and get some ammo/weapons from them, but again... the ammo available to carry would be limited. That's all I'm saying.