Welcome to the Dark City Aben!
Sorry about the late reply.
If you are running the archon with the incubi he needs a Phantasm Grenade Launcher (PGL) as the incubi don't come with assault grenades, and without the PGL won't be able to make the most of their high initiative when charging though cover without it.
The warriors are better with splinter cannons as they give you anti infantry and you can move and shoot with them. Dark lances can only snap fire (BS1) if you move. You want to move those raiders as it gives you a 5+ jink save.
You might also want to consider giving your venom a night shield, as without it your incubi will just get targeted first turn and lose their transport (as alll your other vehicles have night shields).
Hope that helps.