Hmm, yeah, frustrating. I was able to do that mission, but then had a progression bug with the next mission. Can't continue on.
Hmm. I had an issue with this quest, too. I got about halfway through the training, and then it stopped prompting me for new instructions and wouldn't let the mission continue.
I have a similar issue. When we storm the beach and fight the battle, afterwards none of the NOC characters move or respond. I can go wherever, but the quest doesn't continue.