Although a 1 to 12 ratio puts the combat Soldier at less than ten percent I would probably stick to the ten percent since convoys consisting of non-combat Soldiers get ambushed regularly. They sometimes have to fight their way out. Anyone can see combat in the form of mortar and rocket attacks on their relatively secure bases though. "
TL;DR I think only about 8% of soldiers actually see combat.
I was thinking of enlisting myself if I have nothing better to do. Would make me a better person imo. Smarter and Stronger.