The Surface.
Completes the level in 1:48, skipping the grenade launcher. To lure the guard out of the GL hut, I need to hit one of the guards inside, or break a window and fire a shot through it. Because I would've had to wait too long to line up a shot through the window at a guard, I did the alternate way. Saved a few frames on a couple doors with some "unorthodox" warping. Six boosts throughout the level. As I didn't have the grenade launcher, I shot the locks off. This looks neat, but the rest of the level is kinda boring.
I have the very distinct feeling that I forgot something very obvious for this level though. So,,, I will wait a couple days before starting the bunker for some feedback.
EDIT: Youtube video for the lazy:
http://www.youtube.com/watch?v=Fh4pTgEiERo . Might need to wait a couple minutes for it to be viewable.
EDIT 2: The file desyncs when played from the very start. I have half the level to redo, but in the meantime take a look at the working youtube avi and see if you can spot anything I did wrong before I go make the same mistakes again. Also, if the messed up sky is pissing some of you off, I could use lookdown for most of the stage (but that would piss off other people too). I'll wait until later tonight before redoing stuff.