So I came up with this list trying to figure out how to fight my friends future Dark Smelldar army. I find as a nurgle themed CSM army we tend to have few things on the board. With this list my idea is to have too many juicy targets for the oppenent.

HQ:

2 x Prince, Wings, MoN, Nurgles Rot

Elite:

2 x four man Terminator squads with 3 combi Meltas and a Heavy Flamer

Troops:

3 x Five man Plague Marine Squads with Flamers in Rhinos and personal Icons

3 x Five man Plague Marine Squads with Plasma Guns and 2 with personal icons

Heavy Support:

3 x Predators with AC and HB sponsoons

Total is 1850


The whole point of this is to make yourself look big with the disadvantage at having lots of KP. The termies are obviously for termicide ( something new to me which I'm going to try out in my next game). The Princes should be reactive or proactive depending on your opponent, for example I'd have them hide behind the rhinos against DE. I'm still mulling over the strategies for this list maybe your can help.

My first advice would be to leave the Melters at home... give 'em combiFlamers. You will fight DE not an IG TankCompany. Maybe you can save some Points leaving 3 Icons at home. I would rather add some PM to the Rhino-Rushing Troops, since I these will be the first to get their asses kicked. Remember 7 is the holy number
Maybe you could transform one Pred in 1-2 Oblits. Tanks look great on the table, more tanks look even better on a table. But they are pure Firemagnets. And DarkLances can rip trough armour easily, especialy side or rear armour.

my 2 Cents