It's not just "using" the flamers protection, its overdoing it. If you adapt to cannon with borgs, it's an instant result for the cannon player that quicky need to counter back...
hmm... But who improves thermally is protected all the same has in a case reserve Project bodies which enough strong in comparison with cases of a new paradigm. Besides, change at attacker side of the main weapon, conducts to fall of damages, as the new and -> less upgraded.
Flame throwers practically useless against walls, the player should use them as.
I understand this trouble, may be need to try increase strength of upgrade thermal protection?