I just played in the stress test weekend, and was it just me or do you run out of missions super early? I got no more after you went to the bunkers and then to the small camp. Nothing came up for me after that.
Also, what's with the chosen juggernauts being able to bombard you w/o any line of sight? I'm behind a rock formation and they continue to track me perfectly as I move about. It's impossible to 'peek out' and snipe them because they are constantly bombarding you. It was quite annoying.