Thanks for the support guys
@ultifd: The undead faction could use a few tweaks and polish but I plan to merge Grey Elves with Undead and Dwarves to create a Fantasy Pack similar to the Megapack and do a clean-up of all factions at that point.
@Hagekura: Basically the idea behind the Grey Elves is that they were founded by a group of ultra religious elves (monk-like hermits) who went into the mountains. After a while other elves began to follow and small communities formed. The Grey Elves are reclusive and like to keep themselves to themselves in the mountains unless threatened. They live a pretty sparse and semi-nomadic lifestyle and shun the undisciplined pagentry of the "main" elves.
I'm not a huge creator of background fluff for my mods, but that was the basic idea i had in my head when i started creating the faction.
@Will: Thats an awesome idea! I built the unit as a standard hand-cranked repeating arrow firer, but after hearing your idea it would be cool to have the unit as a kind of "death's organ". It fits perfectly with the dark and sombre feel of the faction. Having the weapon play a tune of sacrificial death to the gods whilst making a battle sacrafice of the enemy