I think you`ll find your troops will do different things against different troops, like they will move closer to the enemy to get hit by Heavies but not so close to hit themselves for other troops, Its all rigged Att/Def really don`t make any difference, my units will do a 1 shot kill so the game just will not allow me to wipe out the enemy without taking sizeable damage. Just fought again and my first 3 went across and did 1 shot kill and the other units did not shoot, range of 6 and enemy was only 5 away, rigged all the way