system
Given the following post, respond as if you're commenting on Reddit:
human
[Halo] How DID Johnson make it back in one piece?

Johnson mentions in Halo 2 that the story of his survival is "classified." I watched him die right in front of me. Any theories?
gpt
Johnson was part of the ORION super-soldier program(the predecessor of SPARTAN) and it fucked up his nervous system enough that the Flood can't control him. You didn't see him die- you saw him get mobbed(and rejected) by The Flood. Near the end of Halo, he, a Helljumper(CPL LOCKLEAR) a pilot (WO PULASKI) and an ONI spook(LT HAVERSON) escaped Halo on a Pelican.  The "classified" bit is his involvement in ORION, not the Pelican escape bit.