I wouldn't write about this if it hadn't appened twice to me, and the first time has been one of the worst game I had. Both games were in the mission "Low Blow", both times I had a low level (tier five) Kostantin antag with an O.shtorm (not shure on the weapon), and in both cases the rest of my teams were two puprle rank and a native raider (the first time rank four the next rank one like me).
The first game was orrible, the kostantin was quite tough to fight since he could down a rider incredibly fast. We were able to contain it, but the problem was that nobody was kiling engineers so we got stuck in the fisrt pressure segment. The whole time I saw the Doldren sitting behind cover near a spawn, there was no astral projection around and his aleph reciver was off for the entirety of the match. There was no extra healing and my stress meter was on the entire time (played as Loath). He wasn't clearly helping and initially tought that was scared from the antagonist. Toward the end I walked to him and when he noticed I was watching him he slowly walked into action, while I was shadowing his steps. He played a little and did pretty well, we almost got the fisrt segment while he was playing. After he died he returned behind cover doing nothing and we lost at the start of the mission.
The second match started in almost the exact same manner, the only difference that was an Harec instead of a Doldren. This time I didn't let him do nothing so I followe herc trought the first section this time. The rest of the game was quite fun, I played again as Loath. After the first section Harec was often behind and died a lot, but only the first section having a slaker is game ending so.
It's not the first time that I see this kind of behaviour, but in "Low Blow" the first section require at bare minimum that everybody kill ads. So watch out if you play that mission.