It is not an easy level and the player has lots of things to figure out by himself:
-the use of wind spell (as suggested by ingame objective)
-if the corridor isn't enough for backpedalling he can just run away from the giant
-the need to use CTA
-that he has to sell one or two lair tiles to cast it
-that he can claim dungeon rooms this way
-that he needs to let the tunneller dig to the multiply creatures special (tested without using it though)
-that he needs to defeat the tunneller party (or any party he likes) using either the wizards or using the traps (as suggested by ingame objective that party is going to spawn)
-that he needs to research temple so he can trap the huge party that spawns he cannot defeat with the few he has. And quick enough so he doesn't get his wizards killed (as suggested by ingame objective that much bigger party is going to appear)
-that he needs to train the 4 using (or 5 if used the ressurect creature used) and scavenge the rest
-that he needs to slap boulders through the water so the guard posts get destroyed and he can reach the hero dungeon heart