So I have been considering over the past month or two the creation of a life support system tailored to fit in with the USI mods, and also bring together some the bits I like about other mods already on the market, and add a few of my own tweaks, etc. This is pretty much my interpretation of how, if I were to go buy Kerbal in a store, I would expect a stock-ish life support system to work. I've been playing with it and minus a few refinements am very happy with the result. With that, I