Defense NPC dying from environmental effects

[MaunoMat0]

So it's Sortie and you have radiation in it, in Sorties you have to defend a moving and absolutely suicidal NPC.

It's already a pain in the ass as it's moving all over the place and even when marking it, the marker randomly disappears and if the NPC doesn't fall through the ground into oblivion ( which seems to happen  a lot and you can't revive him/her ), it will die constantly from envrionmental damage.
It's already enough that there are a thousand Grineer/Corpus/Infested attacking it but when it dies 5-6 times in each round to AOE from some crap you can do anything about it gets a bit annoying...

Protecting dumb AI is already a great way to get players to hate missions in games ( only thing worse is adding some timer because you ran out of ideas how to make stuff challenging ), don't make it worse by adding random factors you can't do anything about.

And no it's not dying from the infested which is today's enemies, it's literally just standing still and dying in a radation cloud of some sort.

Either fix it by making it immune to the environmental AOE ( or whatever AOE you decide to apply to the sortie ) or simply don't use it in defense missions.