1) Will the hero's race be considered the "third race in the army" if there are already two other races? For example, if I'm playing as a Castle and I recruit Tazar or Crag Hack, and there are already mages in the army, will there be a morale penalty? (I always thought there would be, but now I have some doubts.)
2) Is the Ballistics skill and, consequently, the hero Gurnisson, worthwhile? I always thought not, but maybe I'm wrong. (In Heroes of Might and Magic III, of course, it's a different story – Gurnisson is one of the best characters overall.)
3) Does skillful turn management really make a big difference, or can you safely rely on the AI? Sometimes it's just too much of a hassle to calculate every single tile.
4) When building "pro" chains, do you use 100% chains (i.e., a lot of heroes and reaching the destination in exactly 1 turn)? Or do you use chains with a couple of turns, but with fewer heroes? It's a shame to spend 2.5 units per day for each distance from the Castle.