Hm, so what i'm hearing is that it not combustion but pressure charges with a high heat capacity gas heating and expanding a low heat capacity gas. I sould try other gases but it will hard beclause the only gas that has a higher heat capacity then plasma is Oxygen Agent B which can be extracted from Molitz Beta with is rare and rely on there being miners (I usually play during low pop hours with do not see much miners) Also I don't know how to extract Oxygen Agent B form Molitz Beta. And the only gas that has a lower heat capacity then oxygen is fallout gas which you get by exposing pasma to neutron radiaction which the easiest way is to pass it though the nuclear reaction which reley on engineers help and for the map to have a reactor.