Necropolis discussions.

Titans become terminators when bulking up, but it's unrealistic to gain that much mass due to the high cost. I have a question: I've become interested in playing as Necropolis, which I haven't done before (neither in Heroes of Might and Magic III nor in Heroes of Might and Magic V)... and here's my question: Is it possible to rush with Necropolis? The map is "Land of Outcasts." Ideally, I'd like explanations against each faction, but the main focus is against Dungeon. Please provide an approximate build order and the most suitable hero, which skills he should learn at the beginning, what to focus on, etc. In general, tell me everything you can about rushing with Necropolis. And is Necropolis even designed for rushing? Thank you in advance.