When it comes to regular guys duking it out, one neat bit is the concept of killing zones. Each unit projects a square one Spear Throw-wide and deep in front of it. Enemy units can't freely maneuver in that zone, being forced to either change facing to the enemy and/or charge, or to retreat. A few other rules interact with the killing zone as well, but the mere concept is cool. Nobody is going to leisurely traipse and maneuver when the enemy is mere meters away. Plus, it probably prevents ass sort of gamey unit arrangement tricks.
TTS screenshot: some Saxon chariots face off against Elyrian Reavers.
