Nice one!
The names for the champion etc are cool.
A few things I noticed.
Rhinos (and Landraiders and predators for that matter) with the extra assault abilities needs to be paid for. 10 points isn't enough for 4+ CC and assault weapons on a rhino.
The plasma pistols seem nice and fluffy but they should have a cost attached. Did you add extra costing to each zerker unit? also you might consider removing the bolt pistols if you have plasmas as zerkers don't normally carry both if they want their chain axes  plus they already be shooting with the plasmas so it's a redundant weapon stat
Are you going to rename the chaos Dreads to World Eater dreads in the army list section?
As someone mentioned in the WE1.1 threads Bikes should be FF5+ as they only have combi bolters.
Are you keen to have 2 reaper shots on the terminators? I assume your costing for them went up due to this? Also have you costed them not having teleport as a basic stat? They seem expensive if you take this ability away. Does it matchthe fluff that they wouldn't have teleport?
I'd check out BL's cannon of khorne stats. They aren't so long ranged but they pack a bigger punch.
You might want to recost the chosen. 2+ CC and 30cm move for 225 seems pretty cheap for a 4 unit formation including a character with 2+ MW and extra attack.
The daemon prince could use a points upgrade for the extra small arms FF5+ ability. Like wise the Bloodlord needs recosting for the gift of khorne FF5+ and extra attack.
Apart from a few other typos overall it looks cool. Are you happy to go with the reduced number of formations that this list will most likely get? In the WE1.1 list I tried to make the list more player friendly cost-wise (removing things like the extra costs for transports/predators and plasma pistols etc) so activation count wouldnt suffer too much. It really does make a difference.
Just some things to consider at least. ÂÂ
