It's disconcerting to see Demi Moore in such a different role in her career. You can't imagine the main actress from Ghost as an elite military corps member until you see her. But the fact is that she does it, and I must say I don't dislike her work at all. Of course, this isn't a film for every taste (it's not a pacifist movie...), but you'll enjoy it if you like the films in the line of First Blood or The Dirty Dozen. At this point I can even say that this film is better to me than First Blood in some sense (for example, its perspective isn't so epic, and the characters are more human). The only things I don't like are the continuous zoom effects in the last part of the film. I still don't know what they are supposed to be... But there's good acting, good tempo, appropriate music, and, why not, another good production from Ridley Scott with which you don't have time to get bored. I also must say that after having watched the film I don't feel like joining the elite forces at all :-), but anyway my rating is 7 out of 10.
