Teamplay Challenge assignment bugged

I'm having the same issue. Repair and heal missions(Specifically the 1st Support heal mission) aren't progressing. 

Tried restarting multiple times but no luck. I've noticed that if you're not getting XP while repairing then the mission will not progress. 

DoubleOCheerio​ Adrenaline shot is also bugged(doesn't allow you the full duration of buff for kill), but it's doable. You have to take the adrenaline shot and basically instantly get a kill afterwards. Best way I found is to use a shotgun - if you fire instantly after consuming the adrenaline and get a kill it will count towards progression.