This movie has gotten a lot of flak, but given the low budget, I think the cast and crew did an exemplary job. It's reminiscent of the Dirty Dozen meets Predator meets Aliens, with a group of futuristic soldiers slated for execution given a last chance at redemption by going on a dangerous mission. Most of the characters are somewhat two-dimensional, but each has a few particular traits that seperate them from the rest of the group. It's a solid movie the whole way through, and might be worth your time to watch.