Sorry man, but I couldn't over look the mind numbingly stupid choices of the initial "scientific expedition". I havent read through the thread so I'm sure it's been covered. Who picked these hoodie wearing, pot smoking hippies for such an important mission? No weapons?! Play tickle with an unknown xenomorrph?! Sensors mapping the structure only displayed on the ship!? Some of the idiots died a fools death and deservedly so. Poor writing or edit job. Expected more from Ridley.
I don't see the problems you're having with this movie. And when you say "No weapons?!" kinda feels like you didn't watch the movie.