Alright. It's time to start up the first real mission of Call of Duty: Modern Warfare 2. As soon as you get on your feet, charge up to the riverbank and start firing on the RPG teams on the other side of the river. Just keep up the fire in bursts. Switch over to the grenade launcher if you want. Just aim so that the bottom tick is on the target. After you clear the shore once, you should have to swing up and nail the targets on the bridge. Just rake some machine gun fire across them.

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Hold on for a little bit longer while the bridgelayer covers the gap in the bridge. Then run up the stairs and take your spot in the humvee. We're on the minigun for this part. There's no ambush for a little bit, so don't worry. Once you pass the militia lookouts, you'll start to take sniper fire. Zoom in the barrel to get it spinning and ready to fire. Then just open up on the soldiers on the rooftop of the school. Spray the entire rooftop and then the windows to keep them pinned. After a short exchange, you'll bug out. Just focus on watching what's in front of you. You'll probably need to shoot the 2 gunners on the backs of the trucks. You might also need to gun down the foot soldiers who get close on the harder difficulties. Other than that, just hang on until you get hit by an RPG.
Get up and run into the room with your squad. Stay away from the doors and just wait for them to regroup. No need to waste the ammo on the guys outside, since we're leaving them behind. Go up the steps, gun down the insurgent at the top, and toss a flashbang. This will incapacitate the rest of the men. Just mow them down. While you're here, pick up a mini-uzi. It's really nice for this level.