Here's my solution.
Take what is currently the "ranged energy" line, and remove the ranged energy buffs for it. Keep the reqs to launch the perks identical to how they are now. Still have them check RE to land, as most soldiers are setup for that anyway. Make it a soldier only line, call it Shock Trooper or something snazzy. Then make the profession group RE mastery line a copy paste of the shotgun mastery line, with all the buffs and stuff changed to RE.