Hi,

I think it would be nice if you could choose a race in addition to you class :
- Ork : high HP, high strengh, very low intelligence. Goes randomly berserk (higher damage, lower chance to hit)
- Eldar : high intelligence, low HP. More powerful Psi powers.
- Cyborg : higher stats but no HP regen : you have to repair yourself.
...

Oh, and how about reprogramming corpses so that when you repair them, they're your pets ?