Screw ability/inability to play, the baneblade is just friggin' sweet.
For those of you who want an even more imbalanced Warhammer 40k experience, coupled with INSANELY HUGE battles, check out the Ork Swarm mod.
Now, as with most Dawn of War mods, it's a major pain to install properly. But once you get it running, ohhh.... Play that one map (I forget what it's called), it's a 2 vs. 2 map with a single chokepoint between the two sides, and you've got yourself a battle that you will never forget.
Orks have one infantry unit, their standard choppa-wielding thugs. They can produce squads of them for free, and reinforce them for three requisition points for each, although it takes a while. Most importantly,
NO UNIT CAP
That's right folks. If you go up against an orkish AI, prepare for a never-ending tide of orks that will only pause for a moment. Namely, when they get the tech/resources to start making artillery.
In order to deal with this massive assault, the other races got buffed a bit. Some more than others...
All in all, it promises a bodycount the likes of which you have never seen before, as your troops will have to climb a mountain of greenskin corpses on their way to combat the fresh wave that's coming over the top.
Also, chaos can (if played correctly), get three simultaneous bloodthirsters.