Ummm,...
...I liked most of it, especially the part with the FPS camera, but I really didn't like the part when they blasted the base/airport/landing pad, I really couldn't tell what it wa, and it wasn't that good. The part where the 4 guys or so lifted off looked stupid. Make the camera shake around when they lift off(Check my website for it). The camera just sat there while the ship lifted off! Make the background(The battlefield) move downward while the ships lifts off. Other than that, I really enjoyed this one. But, uh, don't use so many CS:HL2 sounds, okay? (P.S.: You have Garry's Mod?)