Would a colonization ship have sooo many weapons though? Does the ISS? Did any of the "isolation pods" experiments designed to simulate long time periods of colonization on Mars?
The clues so far seem to point a highly weaponized/ militarized mission. Some weapons, fine sure, absolutely neccessary, but I think the movie would be more interesting if the weapons are more scarce so the crew eventually runs out of ammo/gets separated from them/has to be imaginative and creative with available resources- allowing more options for special effects.
Part of the appeal of A L I E N, at least to me, is the lead character having to come up with ways of eradicating/containing the Alien with available strategies and equipment.
Cat and mouse is an age old technique to bring intensity and suspense to a movie. With quite a few crew members running around with weapons, I do hope my fears of a suspense-less shoot em up movie are unfounded.