Adilaris 
Along with the announcement of the Ghosts of Meridian update for Halo 5: Guardians; 343 Industries is also bringing back more than just Firefight. At a live-stream yesterday, they also announced the return of the Infection game mode in this new teaser video.
Infection is reported to be coming with a separate update called “Memories of Reach”, due later this year. You can check out the teaser video below.
