And they say sequels are always worse than the original (the original: https://youtu.be/y9gv3tH4__c). I'm 90% sure this is a new thing after the last update, the mobile turret used to (kinda) work only against possessed marauders: https://youtu.be/2_yc5789AXA. Of course I tried to do the same with standard marauders several times, but I never saw them get baited this way. Usually their shield was just impossible to penetrate and they were not dumb enough to lunge at you while you were literally machine-gunning them.
It seems to work now though. The trick is simply to stay at the magical distance, he'll keep trying to attack you and get brrrrrr to death.
Here I was actually trying to find a new way to trap the marauder on the other side of the wall now that the shield trick is gone. I got this instead...
Sylar currently has 754,311 views spread across 44 videos for Doom. The game makes up 5 hours of published video on his channel, or 9.55% of the total watchable video for Doom on Sylar's YouTube channel.