What I think
I get the feeling VCs are kinda similar to Dwarfs, as in you have to wait until you have enough corruption in a town/province you took, before heading further.
Generally speaking, I think it would be best to head for that blue Dwarf faction first, because the Humans will tear each other apart while you fight the Dwarfs. And they'll get pounded by the first Chaos armies. When you're done with them, you can come back and crush the winner/survivor (and any lingering Chaos troops).
Tactics wise I don't think I miss not having any ranged, at all (at least when playing VCs). And the other army's ranged isn't a problem either, because that's where Zombies come in. Put a line of Zombies as the first wave, have your higher tier troops protect themselves behind them and flank the opponent with them once your Zombies hit.
Enemy flanking charges same thing, soak it up with Zombies and hold them down until your stronger troops show up.
Don't worry about losing Zombie troops. They hardly do any damage so they're not gaining any (or marginal) experience anyway, so just replace them through raising.
I feel like I'm moving to slow. Waiting for corruption to go up from (close to) 0% to agreeable takes AGES. Since heading into Dwarf country causes attrition, I usually take that first Border Princess town, so that I have at least that as some sort of ahead-outpost.
EDIT: Oh, even with bonuses to corruption like the sword (which seems massive but isn't), it takes long...
But again, getting that town to an agreeable corruption level takes ages. By that time the Dwarfs have formed a confederation and have grown really large. Sometimes the Greenskins keep them in check, but usually it's the other way round.
I have maxed that skill that reduces attrition effect..
So ... what can I do better?