With the Enclave being based in an oil rig, the player can infiltrate their base and detonate a nuclear bomb, annihilating them and their plans. This is the canonical ending of Fallout 2 ...

Fallout 2 introduced a mysterious new faction called the Enclave who wanted to wipe out all 'impure' life in the Wasteland. We destroyed their base of operations, an isolated oil rig, but Fallout ...