I know im working on a World Eaters/Deathguard list myself, but i guess its always easier to criticize (mean that in a good way) other peoples lists, plus with the smaller point size, you tactics and play style would probably be different then mine. Heres what i see.
DP w/ wings, MoN, WT -175
No problems here. He will be a fire magnet, i would hide him behind the LR until hes in assault distance, then go to town.
PM's X4 + champ with PF, 2 MGs -175
PM's X4 + champ with PF, 2 PGs -185
Rhino X2 w/ DP, CW (melta with the melta PM's and Plasma with the plasma PM's) - 130
KB's X9 + champ with PF and Meltabombs -255
These guys need to be at 7, minimum. drop the daemonic possession, while good in theory, odds are, the rhino will be destroyed vs being stunned. also drop the combi weapons, you just want to get your PMs up there. If the rhino happens to survive somehow, they would become fire lane walls for your troops. To find the points, maybe drop the PF on the berzerker champ and give him a PW and MBs, but either way, he dosent need a PF and MBs.
Defiler w/ 4 CCW's -150
LR w/ DP, DB -245
Greater Daemon -100
Khorne defiler, thats cool. LR is a bit of a point sink, but it will get the berzerkers to their objective, so ultimately, thats ok. I personally would drop the GD for another oblit. You need some long range support. That and it would hurt having to sack one of your expensive champs to bring him out. Also, in the event where it might be better to drop in your oblits, some icons wouldnt hurt.
Heres something i would see running at this point level:
DP w/ wings, MoN, Warptime - 175pts
6 PMs + champ, PF, plasma gun, Icon, Rhino w/ EA - 271pts
6 PMs + champ, PF, x2 plasma guns, Rhino w/ EA - 281pts
8 Berzerkers + champ, PW, MBs, Icon - 229pts
LR w/ daemonic possession - 240pts
Defiler w/ x4 CCWs - 150pts
x2 Oblits - 150pts
Hope thats some food for thought!