Stop the Enclave

 is a unmarked quest in Fallout 2. To complete it, you must overload the reactor of the Oil Rig, and then kill the final boss.

Objectives and walkthrough
When you reach the oil rig through the PMV Valdez tanker, you will have to infiltrate the Enclave base. But where to start? First, you must walk through the southern part (after entering the oil rig) to the stairs. You must have Advanced Power Armor, or else the Enclave soldiers will attack you on sight. After walking around the stairs, you will see people in cells. Talk to them, and you find there are people from your tribe, and people from Vault 13. Talking to your mother, you will have to melt down the reactor. Second, you go down the nearby stairs, and must solve the electric floor puzzle. After passing the puzzle, you will come face to face with Dick Richardson. (after walking a few steps of course) If you would like experience, you are allowed to kill him. If you are weak, it is recommended to not kill him, or threaten him. When you are done, you can go behind his office, and find stairs in the back. Walk down, and keep walking, until you find a reactor. It is recommended to have a plastic explosive. If you have one, you can place it near the reactor. If you do not have one, you may have to overload the reactor manually. When you are done, retrace your steps to the main entrance. Here, you will face Mr. Horrigan. It is recommended to have a gauss rifle, to kill this ultimate mutant.