What youve got makes me lean towards Legion of Night. Bit different to what Ive played with but this feels alright. Im sure someone will come along and say otherwise
1995/2000
Vengorian Lord general - Unholy Impetus trait, Amethystine Pinions spell
Mannfred Von Carstien - Decrepify spell
Necromancer - Morbhegs Claw artifact, Overwhelming Dread spell
Necromancer - Arcane Tome artifact, Fading Vigour spell
40 Zombies
40 Zombies
10 Skeletons
10 Skeletons
Corpse Cart with Unholy Lodestone
Corpse Cart with Balefire Brazier
5 Black Knights
5 Blood Knights
Warlord / Hunters of the Heartlands
In general caster bunker with the necros and lodestone to try and stick a heap of debuffs beside the brazier so that the zombies hang around forever on objectives. As the zombies are fishing for 6s, can boost their attacks with Mannfred or the Vengorian swinging first. Knights can reserve and flank to hit supports, Manfred might even teleport over to see whats happening there.
I dont know if you like corpse carts so much you wanted 2 but figured why not. Dropping a cart and zombie block for 20 Greatblade wights would give you another good damage dealing unit which will help against multiwound units the zombies could struggle with. Double attacking wights with Mannfreds
CA and 3 attacks a piece will eat anything.
Something could also be made to work with Vyrkos I think if you have a thing for wolves.