Killzone 3 Walkthrough - Evacuation Orders: Part 1
36Full Walkthrough: http://www.gamefront.com/killzone-3-walkthrough/
Finally, you'll need to meet up with Narville. Follow Rico and climb down to the street below. Follow Rico until he IDs two Helghast with their backs to you. Approach one and kill him silently with L1.
Move up past these guys and you'll eventually hit a small group of ISA fighters. Get down behind cover and start dropping the Helghast up ahead. You shouldn't struggle too much with them, but watch out for incoming grenades.
Past the first wave, you'll find more Helghast assembling ahead of you on the street, near where you see some animal-type mech moving through the background. Watch out for the soldier carrying the missile launcher.
With those guys cleared out, go up the stairs and look for a missile launcher on the ground on the left. Pick it up, grab ammo from the box in the corner immediately to the left, then follow Rico until you get another cutscene.
Descend the stairs and enter the museum. You'll hit Helghast around the first corner — toss a grenade at them before they can scatter. Push up and finish them.
Down the hall, you'll hit a staircase that opens on a large room below. Take cover either at the top or the bottom of the stairs and start picking off enemies.
Once it's clear, you can head down through the big room to a doorway on the far side. Just outside the door is an ammo drop on your right. Grab what you need and move down the stairs.
You want to clear the area on the right side of this courtyard, where you'll see stairs. Drop the guy on the mounted machine gun first, then kill the troops on the ground. When you can, move up toward the stairs.
Keep hopping from cover to cover, staying down whenever possible. When you hit the stairs, watch for two more guys at the top. They might not be paying attention to you, so get a melee kill while you can.
TROPHY: Get a "Brutal" melee kill (i.e. with the knife) and you'll unlock the "In Your Face" Trophy.
You should be clear to get to the valve on the gate. Turn it and you'll open the path below. Get down to the rest of the squad and stay with them as they move on.
Move to the hole in the building to the left of the APC. Up ahead, Rico will boost you over the wall to another cutscene.
Full Walkthrough: http://www.gamefront.com/killzone-3-walkthrough/