DYSMANTLE

Right, this one will be one of the last things that you do. The game presumes that you will have end game gear. You will need it. I won't go into the mission details too much, as I don't want to spoil anything.

Once the last mission section that requires you to "Fix" a certain object, a set of big iron doors will open, and a massive wave of monsters will spawn. If unprepared, you will die. Quickly. So here is what to do. What not to do is try and take them on alone.

You will have an achievement for visitng all the shelters. Do this before attempting the final mission. Each shelter has a loudspeaker nearby. Interact with it to spawn a CPU. These are essential for the turrets. You can craft them in the Bulldong section of the craft menu. So you will also need this area unlocked, and a few extra blueprints that lead up to it on that tree. Sandbags are a great addition to defense, as it slows them down, allowing the rocket turrets to deal more damage.

Machine gun turrets are alright. But its the rocket turrets that you will need. Even with both ammo upgrades, you can run out of ammo fast. So, grab the turrets and set them up outside each shelter and beat all waves. Inside each shelter is another CPU hidden somewhere.

Once you have the turrets. Head back to the Crown Station area, and in front of the door, place some Sandbags in front of the doors, which the turrets located to either side. Now activate the object you need to fix, and watch the carnage unfold. It will be over fairly quickly. Stay away from the impact areas, as the splash damage is high. Out of the 8 Sandbags, I lost 6. I needed to reload the turrets once each. Not a single enemy made it halfway to the object, and I breezed right through. Good luck, and I hope this can help someone.

Fun point to note. If you head inside the doors afterwards. Keep the door behind you and make your way to the NW room with a blue chest. Inside, is the Ark Lab key. Why do you want this? Because, if you want tondonthe Ark Nemesis achievement, you will eventually reach level 2. Inside here, behind a locked door, is a Fabricator. This can craft the Power Fist, which when fully upgraded to do 100 damage, will destroy pretty much anything in your path. Sure, it's literally the end game now, and you won't have a lot left to do. But the damage you'll do will put a smile on your face, like it does with my daughter who wants to help me level the entire map.

Good luck with this game, and I hope this guide helps you out.

Once all 8 shelters are done, you should be able to build 5 rocket turrets.