There was a official rule for the eldar posted in a recent issue of white dwarf.It goes as follow-Eldar are noted for their grace and agility, and are able to move more swiftly than other races when necessary. In the shooting
phase you may declare that an Eldar unit is going to run instead of shooting. Roll a D6. The score is the distance in inches the
models in the unit may move in that shooting phase. This move is not affected by difficult terrain.
The following models may not run:
- Eldar vehicles and jetbikes
-Any model with a saving throw better than 4+, except Dire Avenger, Howling Banshee and Fire Dragon Exarchs.
-The Avatar
-Anti-grav platforms or support weapons
-Dark Reapers