Poll: Corrupt ONI officials as enemies in Halo 5 [closed]
Total Votes: 103
Brief idea
ONI finds out that the librarians modification is turning John into a forerunner. Combined with his state of mind after Cortanas death, Chief is reclassified as a threat to humanity and ONI is trying to kill him.
Whoops, sorry about the third option
[Edited on 12.29.2012 4:05 PM PST]