Heroes in Heroes of Might and Magic V.

It really worked. I downloaded two hundred maps, and now I'm complaining that I have even more. In short, the problem was with two maps (or rather, map packs). One was a collection of "scenario" maps (i.e., story-driven maps with conditions) – Game of Thrones – which contained six story maps and, naturally, had its own set of heroes that were linked to heroes on all other maps. The other map, created by a German user (I don't remember the name, something like "Strichenbacher"), replaced several heroes in each faction with some cartoonish anime characters.
If anyone is planning to do something similar, be careful with this, guys. I spent almost 3 hours sorting through over 200 maps.