As Intercessor points out, there are some illegal things in your list that need to be sorted out.
Command Squads and Enforcers aren't really good in combat though. Seems a bit overly optimistic to invest in an expensive transport (without militia training even?) for a chance at getting a fragile sub-par melee unit into combat turn 3 at the earliest.
How I see it, Command Squads are good for two things: manning a Heavy Weapon with their decent
BS, or hiding in reserve to not give up First Blood. The latter usually works best for me, as they draw attention if they're armed, and they die to a stiff breeze. Hiding in the backlines taking lasgun pot-shots at things and securing an objective in the last turn of the game is something they excell at, though.
50 Mutants take up a lot of space on the table, so much so that it can be hard to manouver. 30 is a more managable number, but this might vary on your terrain. They're not a tarpit unless they are Fearless They'll run away and be swept in combat without a Stubborn/Fearless character in there. No point in buying a Champion unless you're giving them a covenant either, and then Khorne is probably your best bet. I've ran a 30 man blob of Mutants with Covenant of Khorne and a Demagogue with the Zealot devotion (forgot the name), and a Combat Drug Enforcer. That's actually a pretty scary blob at a decent price, with all those attacks and re-rolls.
Spawn are good, they provide some much-needed mobility for a low cost. Quad launchers are great. Demolishers and Bane Wolves are alright, dropping templates is sort of our thing, so can't go too wrong with them
If you like Vanquishers, go for them, but Laser Destroyers outshine them so hard it's not even funny. For one third of the price of your 2 tanks, you get 3 Twin-Linked s9 ap2* Ordnance shots that are easier to hide in cover, with solid durability (more wounds/armour saves).
*In
IA:13 there is only a Laser Destroyer entry listed as ap1, but in the Siege of Vraks 2nd edition, which is a newer Renegade army list than
IA:13, there is a Laser Destroyer (AP1) and a Laser Destroyer Array (AP2), and Rapiers are given the latter.
Not sure if the Heretek Magus is worth it either, sure the
FNP is nice, but you can get it through a Covenant of Nurgle anyways. Put a CoN demagogue in with the Quad guns and they get it, and a 6+
fnp on infantry without armour is...meh.
Plague Zombies are also one of the best Troop units in the entire game.
Just some things to consider
All in all your list looks very thematic and fun though.
