. . " to get them all gone alltogether since you have alot,so the battle will go on for more than 2-3 rounds.And since it will be over 2 rounds,and damagge dosent hit til the second round,they will be hit hard from damage and range but mostly damage.So when the enemy has the 3 heavy range units(and everyone does that),you will have an advantage.Thats my personal thought about that.Mostly I use infantry" . . .