I haven't reached that part in my patch 4 playthrough yet, but that fight for me was the hardest fight in the game pre-patch 4. If I was unlucky, I did get wiped in first round sometimes. The bullete or the spider matriarch (which is a hard fight imo) are a walk in the park compared to that.
The gith patrol is usually the one fight, I use barrelmancy and other helpful stuff.
