For some reason damage done by the corrosive gas fired from mortars is counted as melee damage dealt by the pawn firing it, this triggers an Implant/Organ(?) from "Evolved Organs" to put a plague effect on the pawn firing the mortar and it adds more for each bit of damage the gas does, this leads to near immediate death to the pawn firing the mortar.

I'm not exactly sure how this could be fixed but maybe changing how the damage is dealt.
If you don't believe this is something you can fix (as in its a problem with EO) then please let me know and I'll contact them about the issue instead.
Thanks in in advance and also for creating a great mod, genuinely one of my favourites as I love the acid gas and non-lethal options
.