Everything should be balanced for giving Mercs the tools to be a ranged class and maintain range, while giving melee and 10m specs a chance at killing them. You don't want to have a situation where Mercs become the kings of kiting and are untouchable, becoming the new FOTM class. Balance is key here. Balance is about addressing the turret nature of the Arsenal spec, the damage of Mercs is fine.
u mean snipers?
instead of making charged bolts instant i would make tech overrid, which is useless at its current state, to cast abilities instantly for the next 10 seconds, instead of only one, worst high lvl skill ever, laughable at best.