One questions I've had regarding rule and mechanics:

Since Battle Rifle is not specifically mentioned under the Rifleman speciality, would you allow Rifleman to grant the +1 to hit with Battle Rifles?

Without allowing it, you end up with the odd case that Hemvärnet members carrying AK4s who rolled/selected the Rifleman speciality, actually become more skilled at shooting people if they pickup a dropped Soviet AK-47/74... which seems weird and perhaps unintended.