It seems that during the final mission in the Skeezick rebellion campaign on normal difficulty (have not tried it on any other difficulty) you cannot complete the "Kill the Draksar Hunters" objective needed to advance the mission. Only two hunters spawn during the start of the mission and it does not seem to count any hunters that the A.I spawns after the mission starts. I have tried this mission multiple times to see if the third hunter would spawn, but it never did. Below is a screenshot of my attempt to complete this mission by blocking out the enemy spawn area with the Skeezick rioters, but that didn't work so I'm at a loss as to what I can do here.
Yes this is bugged, I was trying to complete these mission, but I couldn't. Only 2 hunters spawn always.