I'm going to agree with Honsou and fynn.
I use a couple of regular CSM in my PM squads. Greenstuff works well to make them look corrupt. Painting is easy as camo green > dark green ink> Drybrush camo> drybrush sunburst yellow.
Using both cult troops could work well. Just decide which one will perform which tasks. Both can objective camp, and both can be rushed forward. If you are going to use lash, Why not have PM in a rhino w/ havoc objective sit so they still have a TL 48" range small blast while a NM squad can move forward.
Alternately, since NM don't have the best anti-tank, you could send melta PM forward and keep NM with blastmasters and havoc rhinos camp.
You could probably make your own noise marines by cutting up a sprue to make sonic blasters, and adding the Dirge Caster bit from vehicle sprue for a doom siren champ.
Peace!
I use a couple of regular CSM in my PM squads. Greenstuff works well to make them look corrupt. Painting is easy as camo green > dark green ink> Drybrush camo> drybrush sunburst yellow.
Using both cult troops could work well. Just decide which one will perform which tasks. Both can objective camp, and both can be rushed forward. If you are going to use lash, Why not have PM in a rhino w/ havoc objective sit so they still have a TL 48" range small blast while a NM squad can move forward.
Alternately, since NM don't have the best anti-tank, you could send melta PM forward and keep NM with blastmasters and havoc rhinos camp.
You could probably make your own noise marines by cutting up a sprue to make sonic blasters, and adding the Dirge Caster bit from vehicle sprue for a doom siren champ.
Peace!