The weakest castle in Heroes of Might and Magic IV!

I don't really know... I'll try to reason like a complete newbie, but still. For some reason, I completed all the Campaigns for Humans in all the game's expansions and in the original without any problems, but for other races, I only got through 2-3 maps, and then they just get crushed like noobs.

Angels aren't very good =). I don't know...

Death is a prime example. Imps, skeletons, ghosts, even cerberuses - I rarely used them in battle. That is, in battle, the enemy may not worry too much and can focus, for example, only on destroying vampires or devils/bone dragons. This isn't very good.

I don't know why, but it seems to me that halflings are the most powerful unit among all other level 1 units. I know that their damage is 1-2 and their health is slightly more than a pixie... but somehow there are much more of them than the others, and on top of that, they are also killers.