Everything went right in this run. The dwarves pathfinding didn't screw up, the wood gathers stayed together and efficiently gathered food, the fireball throwing giant didn't alert his millions of followers to my presence, smashing up his property, and most importantly, I only lost 6 of my Heros of Ragnarok during the entire final battle, allowing me to maximize their ridiculous 25+ base damage per hit.

Note to any future runners of this level, if you play with extended edition, you need to use the earliest patch available, pre-2.3.