Complete section corresponding NSM
Be sure to take the rocket launcher (the gun with the big fat barrel) into this area. AT THE BEGINNING OF THIS LEVEL, RUN LEFT! AS SOON AS YOU LAND FROM YOUR PARACHUTE, A BAD GUY WILL COME RIGHT WHERE YOU ARE/WERE! Shoot that guy, and grab the bullet. Fall off to the left, avoiding the bombs the guy below throws, and blast him to get a bullet. If you want to gather bullets, this isn't a bad place to do so before going in the door. Parachuters come in endlessly at a pretty good rate. If you don't want to, just go straight in the door.
You'll be swept away by the puddles/blobs right away, so don't try to run away. They'll take you to the right. Quickly, grab hold of the first platform you can get, hook up to it, and get on.
When you're on the yellow platform, run to the right side, swing off, and grab (in midair) the small platform extending out of the gray rock.
Once there, run under the small space so you're under the long yellow platform. Hook up onto that, then hook to the right onto the platform with a spring on it. There's a guy driving a tractor above, so, timing well, get up where he is, blast his tractor, and, if he pops out, kill him. Notice he's a midget! Laugh (optional.) Run to the right and hook up twice onto the platform with another tractor. Shoot it and keep going left.
Hop over the crate/box, but don't go in the communication door; you don't need to. Instead, wait for good timing and drop down a level, then keep swinging to the left onto the platform.
Once at the left, swing off about the midpoint of that upper segment and then hook up to the platform above on which two crate sit. (the pictures make a lot more sense than this writing.)
Swing across the two crates and drop just to the left of the left crate. Timing well, drop off, killing or avoiding the crate, and then get right to the edge by the gap. Drop off the gap and grab the first platform that comes around. Once you get on the yellow platform, go left and get onto the orange one. (again, see the pictures.)
Get into the door. This boss is a platoon. You can handle it. Just charge right, killing all the guys in your way. Hook up next to the generator. Since the rocket launcher is so powerful, it'll only take a few (e.g., 3, 4, or 5) shots. You get the pendant, which will block one shot whenever you use it.