The Coming War

The Coming War is a mission on Phobos in Fleetbase Korus where a Cabal distress signal is being broadcasted on all channels

Background
"This membrane is attempting to form a bridge between dimensions, but I think it requires a living host to do so."

- Ghost

At the beginning of the mission, Commander Zavala mentions that "If they are willing to break transmission, this could be prelude to a full-scale assault."

Once the Guardian sets down on Phobos, A Cabal Legionary is seen crawling on the ground and dying. Further ahead is another Legionary is seen on patrol, until the entrance explodes and kills the Legionary. The Guardian enters the base, looking around until a small, starry, black-and-white entity is seen retreating up a corridor. Whilst trying to retrace the path the entity had went, a strange membrane is seen, which can be scanned by the Ghost.