Hey, I'm kinda stuck. I've always been able to get unstuck, eventually. But I don't have time to waste messing around.
I'm on the level right after it pops up the message about infiltrating the high security base and stuff. (I think it's lvl 7 or something) and when you start you're in an elevator that's 10ft or so below a large square room with laser shooting spider dudes in the corners. I killed 'em. Now I'm stuck, there's a button on one of these platforms in the corner. But you can't reach it, it's in the wall a bit to far. There's some sort of floor combination you have to do to get it to open. I've got the first bit, but I don't know the rest.
If you run onto these metal panels it makes this sound, and I think if you do the right combination of panel stepping it opens something.