NECRODOME

Objective 1: Activate switch to access lower Mausoleum. From the start, go north-north west and follow your indicator. You should approach a roofed-temple looking building. Watch out for some tough competition in the area. Turn to the left of the building to find a hill you can go down then enter the building. Hit the switch and pickup the items in the area. You know have access to the lower mausoleum.

Objective 2: Activate switch to access upper Mausoleum. From the last temple head to the south and locate your indicator on the compass, follow it. Along the way you will fight a bunch of the Marauders, so proceed with caution and arm your missiles. When you follow the indicator you will be in a murky lake, so just continue. You should find a pretty impressive entrance to a stone-floored area. Go through the door on the right. To the right of this door, you will find the next button and some ammo in this chamber.

Objective 3: Retrieve Flag. Since you are in the lower Mausoleum you need to head north to the upper. It shouldn't take you to long before you run into a wall. Go around the right side to the front of the Mausoleum. The entrance is bigger then the last, it even has crosses this time. Go on in. Head up to the upper right corner of the room to find the open gate to the next. Destroy the turret, get the flag and the nuke and head back out to the front of the mausoleum.

Objective 4: Return flag to start platform. Head to the south, to find the indicator. You will begin to go more to the south, and keep an eye open and a gun ready incase you are attacked. Find the platform and exit.