I've been a imperium player forever and this summer I decided to start a side project with chaos. Bought a bunch of new DG stuff along with a DV starter. Just got my codex (gamer's ed., whoo!) and I came up with the following. Only thing I don't own is the Foul Blightspawn, but it can be easily proxied.
Double Batallion (9CP)
Typhus (blades of putrefaction, putrescent vitality)
Chaos lord > bolt pistol, chainaxe
10x cultists > 8x autogun > heavy stubber > shotgun on champ
10x cultists > 8x cc&bp > flamer > cc&bp on champ
Noxious blightbringer > plasma pistol > cursed plague bell
2x foetid bloat-drones > 2x plaguespitters > plague probe
Daemon prince of Nurgle (miasma of pestilence) > wings > daemonic axe
Malignant plaguecaster (curse of the leper, gift of contagion) > corrupted staff
5x plague marines > 2x boltgun > 2x plasma gun > plasma gun, PF, plaguesword on champ
7x plague marines > 4x boltgun > 2x blight launcher > plasma gun, PF, plaguesword on champ
Foul Blightspawn > plague sprayer
Chaos rhino > combi-bolter
2x Chaos predators > predator autocannon > lascannon sponsons
That's 2000 points.
List should be quite straight forward, bigger PM blob in the rhino with plaguecaster and blightspawn. Plasma PM walks in rapid fire range. Cultists and poxwalkers shield deployment zone and predators and deny deepstrike. Cultists also guard poxwalkers to give them possible use for the dead walk again stratagem. Bloat-drones advance aggressively, followed by the rhino and DP, who can give miasma after disembarkation on T2 most likely. Chaos lord is there for 2nd batallion and rerolling 1's on the predators. This way everything would be wysiwyg besides the missing foul blightspawn, but model's not out yet I think.
Feel free to suggest improvements, I got double DI and single DV, FS, KNF and easy to build poxwalkers and PM's.