Uninvited guests.

The best map in Heroes 5 that I've played. I sincerely envy everyone who managed to complete it on a hero. I played as Barbarians, taking Haggeesh only as my second hero, and as High Elves, taking Ossir as my second hero. I join those who suffered from the "Week of Sickness" scenario))). There are two scenarios that I don't understand how to complete - the first is the "Week of Sickness," and the second is clearing all the nearby mobs, including the guards of the wood and ore mines - archers. I experienced this in 9 out of 10 attempts. In the 10th attempt, I got lucky and managed to level up my hero to level 13, but it didn't help much against a Necropolis hero of level 17 with 10 undead and 300 skeleton archers))). Where do you get so much wood to build at least a Stronghold in the early game? Otherwise, I don't know how to build without losses. Necropolis and Dungeon heroes don't have these problems, of course).
P.S., I'm not giving up and I'm still trying to complete it on a hero using only the starting heroes.