I've mentioned it in the chat earlier, and some people seems to know about it (and abuse it?) :
If you WAIT in a bush, the opponent is able to hit you only once every other turn.
Replay here: (frame 53)
or here: (Frame 31-35-51)
In those replay, I have my heroes at the exact same spot as the opponent (same exact position as the bush)
It makes the "rush until we die" strategy quite complicated to achieve..
I've tried MoveAttack and Attack commands, both fail here