Killzone 3 Walkthrough - Icy Incursion: Part 5
Full Walkthrough: http://www.gamefront.com/killzone-3-walkthrough/
Once the cutscene ends, flip to your WASP, change to artillery mode, and target the tank coming down the hill toward you. Knock it out and get behind cover.
TIP: You can also use the WASP to put artillery strikes on the two dug-in Helghast positions up ahead. Just make sure to leave yourself one more shot — you'll need it.
Take cover and clear the other Helghast before heading up the hill. The structure on the right when the hill banks left has an ammo dump inside that can refill your WASP cannon, and as soon as you get there, you'll need to use it on another tank. Destroy the enemy artillery, then do the same with the Helghast infantry position. Ammo up and head onward.
Helghast are dug in just ahead of you as you climb to the top of the hill. You'll see a big building and a smaller one to the right. Pretty much all the windows in these structures hold Helghast, in addition to the ones just running around.
Find cover and move up slowly. You'll want to head over to the right, if possible, where you can clear and enter the outbuilding and use it as a base. There's ammo inside, as well as cover.
From there, you can cut your way inside the main building by entering up the stairs on the far right. Be careful as you get in, though, as there are two staircases to the top level — one to your right, one to your left. You'll find a couple of troops on the ground floor as you enter, and a couple more above.
If you did okay outside and cleared enemies from the windows, though, you shouldn't have much trouble as you enter the building. Get to the top floor and clear it out, then proceed to the objective to end the chapter.
TROPHY: The "Into the Lair" Trophy unlocks when you reach the cable car.
Full Walkthrough: http://www.gamefront.com/killzone-3-walkthrough/