Duke Nukem Forever Walkthrough Part 9 – The Duke Dome

Head down the pipe and make a right, continuing along the accessible path. Exit the pipe and go left. Follow the trench along until you reach the pool of water. You must jump onto the pallets that or floating in the water or you'll take massive damage from the electricity that is surging into the water randomly. Follow the trench to its end. On the right you'll see some flames and a fireman's corpse hanging just above them. Shoot out his fire extinguisher to clear your path. Put up your Duke Vision and head down into the next pipe. You'll shortly find a ladder, take that up.

When you emerge you'll hear an amusing conversation.  Walk over to the men on the cargo boxes to keep things moving. One of their friends will bring around a crane transport so hop into it. The guys on the container will die pretty horribly but just keep moving along in the transport. When it stops you'll be under fire from some aliens. Kill them however you want to as you have a great number of weapons lying around you. The second time you stop close to the ground, again kill all the aliens to advance. You'll stop once more with a few flying Assault Captains and a number of pig cops. It ends when one of them throws a car at you. You can survive getting knocked over by it so don't worry too much about taking the car. The crate your in crashes. Restock your ammo from the resupply then head on down the path in front of you.

You'll see a locked gate but to the left of it you can grab a rail gun. It has a handy zoomed in mode while aimed. After that, melee the lock to get it out of the way. Once you see the two aircraft duke it out above you a number of pig cops will attack you. Great chance to try out the rail gun, just not so much the zoom feature. Once they're all dead, head down into the plaza below the entrance to the Duke Dome. On the left side, you'll see a single red barrel. Shoot it with whatever to get to explode and open up your path.

Head into the yard in front of you. Go across it and loop behind the trailer you see in it. Climb the ladder onto its roof and fall down any of the holes in its ceiling. Go over the far right side inside the trailer to restock on explosives. On the left side you'll find a copy machine, use it twice for an Ego Boost. Grab what weapons you want then hit the switch by the door to power everything up fully. Once you do, you've got a few waves of aliens to slaughter. You can also grab the RPG and unload it onto the drop ship, hopefully taking it down. Otherwise, chuck lots of pipe bombs and trip mines to take advantage of that explosives pile in the trailer. Eventually the aliens tip over the trailer, letting you out. If you have steroids, pop them to deal with these pig cops a bit more easily than shooting them. After that, head over the gate and hit the button to the right. It will start to open then stop, force it open to continue.

Head down the slope into the next part of the Duke Dome.