[Graeme Dice]

Originally posted by Arryn:
I've seen immortals retreat in friendly dom. If this is a bug, it's been around a while.

Immortal units will retreat while in friendly dominion. Immortal commanders are not supposed to. An easy way to test this is to take your starting wraith centurion with Soul Gate, and have all your troops killed off by independents. The centurion will not rout, and will fight to the death.