[rdonj]

Personally I never used them as ranged units, because they're so incredibly effective at melee. But you don't terribly have to worry about them being too strong, 8 ap barely qualifies as a ranged attack in dom3k whereas the protectors have aoe poison... basically 3 or 4 an aoe damage, to just about anything. Actually I would suggest lowering the amount of those summoned, you don't need them in huge quantities to be effective, and they're quite strong at range.

I am not sure what corrosion does. Is that a break armor effect? If that's the case, then I could see it being useful as a ranged attack, but I would suggest lowering the ammo to 2 or maybe 3. That way you could use it without completely giving up their melee potential. Did you intend for the drones to not have AP attacks? They both have Insectoid Claw attacks but the drone's version doesn't pierce armor. That was a big reason for me to use the soldiers in melee instead of ranged. You also may or may not want to increase the ammo on the protector's ranged attack, as it has 5 shots.