Same assignment is giving me the same problem, with me the it's now between 16 ands 17 hours past the finish point. I've ade an in-game ticket about it, hoping to see it resolved. Attached to the minimap, you'll see a question mark for support. Click that, select "report a bug", maybe searching for mine lets you add yours…
I hate to necro old threads but... almost a year later, and guess what... yup, still he same issue. I got the mission, butchered the first wave, and then... blammo, stuck, I can still target and all but suddenly no more supporting fighters, get stuck when manouvering, and the enemy just takes turns sticking it up my…