Well Xavier with his damage is probably going to be the least likely to be able to fight so he'll take the most canisters he can, probably 2.
Also we need to work out something lighting wise. Is there anyway we could borrow something from Kayda for light on Black?
If not is there anyway Xavier can modify the Blasters to be used as lights or torches?
Also I have a question exactly how does Ranto keep 3 days worth of oxygen in his body?
Cause he can maybe we could use him to refill canisters by blowing into them or something?