Very true but individual soldiers no doubt fired out of self defense often - even if they broke fire discipline to do so. I was thinking of using the simple numerical system, broken down into chunks representing weaponry, i.e. if a MG is worth 20 points and a squad has a MG and two rifleman (each worth say 5 points) than you could break down the available fire dispersion into 20-5-5 (three attacks/lines of fire). So when a target is engaged with all firepower available it would read 30 points on the line. If you wanted to break it up into 3 attacks you could have 3 lines, two with a 5 firepower rating and one with a 20 - this would maintain the realism of 1:1 soldiers without the graphical problems of putting 12 miniature men in a small space.