I'm having the exact same problem. I've played this mission at least 7 times and Im soloing on Legendary. To say I'm getting pissed off is an understatement. Fix this now.
Actually, let me correct that... I'm playing Enemy Lines mission. I've gotten to the kracken but every time I die, I'm starting over way far back. Talk about sucking out all the fun. Now I can't even get my save to load