Your strategy for playing as Necropolis.

Hmm... maybe I'm just not smart enough (IQ=142), but I've never managed to get more than 1500 skeletons on any map. Theoretically, it's possible, but in practice, after clearing the entire map (size - large and very large) and losing a maximum of 100 skeletons, I usually end up with 700-1300 skeletons (we're not discussing the difficulty of playing as a Warrior or Recruit here).