Yeah support specialist tier 3, incendiary air burst damage is bugged. Ive gotten tons of damage and kills with this and it never registers the points on the tracked challenge. Huge pain
I just found a YouTube video on how to get it done quick. Spawn in on conquest as eng and place your mines around a vehicle. Move the vehicle a bit towards the mine. Go into menu and redeploy. Spawn in as support with the launcher. Shoot the mine. It does 1000 damage on vehicles. I just finished after blowing up 3 vehicles
https://youtu.be/kpdZwmt938c?si=TNoBCcz9OO7BWLnR
