Rangers

Squad may deploy using Infiltrators special rule

Rangers add +1 to any cover saves it is allowed (e.g. a 5+ cover save becomes a 4+ cover save). If not cover, they are granted a 6+ cover save.

Rangers moving through difficult terrain can roll one additional dice when determing their movement distance.

Eldar units with this rule may run instead of shooting in the shooting phase. Roll a D6. The score is the distance in inches the unit may move in the shooting phase. This move is not affected by difficult terrain.
The Avatar; vehicles; jetbikes; any model with a saving throw better than 4+ (with the exception of Dire Avengers, Howling Banshees; Fire Dragon Exarchs and Phoenix Lords); units contain anti-grav/support weapons; and Dark Reapers may never run.