Using Lifesupport and Spacebuild

I’ve understood that Life Support and Resource Distribution adds the need for oxygen, water and pressure in spacebuild gamemode. Well, I’ve downloaded these three (spacebuild_v3, lifesupport2 and RS2), but when I select a spacebuild map (I downloaded gm_new_worlds2), change the gametype to spacebuild and enter the game, I can just build a spaceship and visit arctic/desert/lava planets and open space, no need for oxygen. What’s wrong?

Sorry if I’m impatient, but I’d really like to know the answer.