The 'under-barrel flame projector' attachment has damage 10, crit 2, burn 5, blast 2. It does the same damage as a heavy blaster rifle and only needs the 2 advantage to then set an opponent on fire to take another 10 damage per round (without an attack roll, or occupying the PCs action) for 5 rounds (or else taking his action to put out the flames). This combination seems more potent to me than the alternatives.
One of our group has found this toy and come to rely on it exclusively. I haven't said anything to him yet, but I find the attachment overpowered and perhaps unbalanced.
I'm looking for someone to convince me otherwise.
Edited by blaked