Necromancers – “Assault” [Campaign 3, Mission 2]

I played it like this: in two days, I recruited the undead on the first island, then with both heroes, I rushed to Mythgard. (Difficulty - Warrior, so it probably won't work on Veteran.)

I just need to complete the upcoming battle on the save file before reaching Mythgard; I've already reached it. Version 1.6, Warrior difficulty.

Added 1 minute ago
But still, thank you. I'll try tomorrow.