HotS 10th anniversary has an achievement called “bad blood”, you need to kill 15 units with parasitic dominated terran units in the “Conviction” mission. I played the it, used infested prisoners form the virophages, but I didn’t get it. Then I thought “Hm, what zerg unit can infest stuff? Oh right, infestor!” The problem is, I don’t have infestor unlocked, I went for the space missions first.
So, if I have to get infestor first then I guess I have to start a new HotS campaing, waste a lot of time e.t.c.? Or im just dumb and I should replay the mission and try until I get the achievement? I couldn’t find any information online, pls help.