Installation 07 conflict
From Halopedia, the Halo wiki
On May 28, 2560, Echo 216 crash landed on the ring after taking anti-aircraft fire. John and the pilot of the Pelican argued before arriving at a plan: the SPARTAN would take out the AA guns then the duo would attempt to retrieve a working Condor. John-117 left the wreck finding an M12 Warthog. With possession of the weapon, he proceeded to one of the AA guns and wanted to have her hack it. He would fight Banished forces along the way.
Events in the facilities
At one point John-117 entered into Forerunner facility on the ring with numerous Banished standing guard.
List of appearances