Let me educate you about this so called "front line" in battle. ALL British Army troops, are trained to fire a weapon per se. This is because in wars,battles etc the "front line" is where a soldier engages the enemy. Now wars are not fought like they were a hundred + years ago, where they all face each other across no mans land and then attack each other. The front line can be anywhere the enemy engages you. For example In the Iraq war many USA supply vehicles were ambushed, and the male and female drivers/cooks/Ordnance troops on the vehicles,were suddenly engaging the enemy in a contact. So basically any and ALL troops are trained to a battle standard fighting grade..