I was just playing with the Rusted Hulks, doing my utmost best to get the no building or mech damage achievement.
I was using the shield self ability of the Pulse Mech to protect myself from burning forests.
All the way at the end of the last round of the encounter that mech was standing on a burning forest and lost 1 hitpoint. I believe this is a bug, since the shield is supposed to protect me from the fire.
Guess I'll have to try again to get the achievement
