Enclave

The Enclave are the primary enemy in the wasteland.

They came to wasteland and took control of Project Purity, after which the Lone Wonderer led an attack along with Liberty Prime and the Lyons Pride, to reclaim Project Purity. The Lone Wonderer successfully took control of the Rotunda and Activated the purifier.

They eventually regrouped at Adams Air Force Base and used a massive Enclave Mobile Crawler as a base. Which the Lone Wonderer subsequently destroyed, almost completely eradicating the Enclave from the wasteland.

For months now, The brotherhood has not seen any sign of the Enclave, and has begun to believe that they have seen the last of the Enclave...

Until now...