Note: Its against the rules to post the exact cost of upgrades. Just list the total.
Chaos Lord (90)
-Daemon Weapon (40)
-MoK (10)
The Khorne Daemon Weapon is the worst one because there is a 30% chance you will roll a 1. That means no attacks and probably hurting yourself. If you want a Khorne Lord, take Lighting Claws, its safer and almost as killy.
7x Chosen (126)
-2 meltaguns, 2 meltabombs (30)
-Asp. Champ. w/ PF (35)
I'd drop the Meltabombs and take either Meltaguns or Flamers instead.
5x Terminators (150)
-1 PF, 2 combi meltas (20)
Try to add more C-Meltas or a Heavy Flamer to this squad.
Retinue- 9 Possessed Space Marines (234)
-Icon of Khorne (30)
Sadly Possessed are considered a "C" unit at best. The single biggest problem with them is there isn't much Possessed can do that Berzerkers can't do while being a Troop unit.
10x Berzerkers (210)
-Skull Champion /w PF (40)
10x Berzerkers (210)
-Skull Champion /w PF (40)
-Chaos Rhino (35)
-Combi Melta (35)
Good units. Since they're going in the Land Raider you can use 10 to maximize the numbers in there but for a Rhino, 8 is usually enough (and its Khorne's favorite number).
Land Raider (220) -contains HQ and possessed
Land Raider (220) -contains berzerker squad
If you have the points, I'd try to put E. Armor or D. Possession on the Raiders. Helps them keep moving.
3x Obliterators (225)
Alot of ranged dakka which is nice. Try to hide them in cover or walk them behind a Land Raider so they can't be targetted.
Its a pretty good army really. The one sticking point is the Possessed and lack of scoring units. Luckily you can fix that pretty easy by dropping the Possessed and getting another squad of Berzerkers or
CSMs.