Builder Security

Builder Security was a Builder military organization. They conducted security and combat matters for other Builders; in many cases, they effectively served as the Master Builder's private army. After the Ur-Didact went into exile for the first time, Builder Security almost entirely supplanted the Warrior-Servant rate, with most former Warrior-Servants joining their ranks after their own rate was diminished. However, many former Warriors retained their loyalties to their original rate.

They were a full-fledged military force with formidable equipment, including Seeker combat craft.

List of appearances

 * Halo: Cryptum
 * Halo: Primordium
 * Halo: Silentium