Ethan was a part of the Project Omega, that was arranged by Templar GuardianAngelica Concord. He escaped the facility of Abstergo Medical where the operation was going on however, and Ethan's lover joined the Assassin forces with his lover. The latter operated as a hacker for the group, and later framing Abstergo Medical as terrible place. The Governements needed to shut it down!
At some point, Ethan and the Neon-gang traveled to the Black Sea in order to locate a Temple left behind by the First Civilization.
Zachariah and his friends was named the Neon-gang by the Assassins – since they were always operating together on missions for the Order. The gang had taken the name after One told them he was sometime nicknamed Neon.