I am playing a campaign game PBEM. I am the British player and find that the US fires in excess of 2 and 3 times per unit, on opportunity fire. I don't understand that engine. Since on the attack, a company can fire only once, then why would a company, on defensive fire, be allowed to fire three times as much? I am aware that opportunity fire is half of regular attack fire, but realistically, some guns and companies are firing each and everytime one of my company's move. Very frustrating and it only allows me to march in column as fast as possible and close in for a melee. There is a definite disadvantage here.