Engineer specialist 3, repair vehicles health 1000.

I've been trying to complete this challenge and it's not tracking at all. I'll get in a vehicle it'll get damaged, I repair it, it doesn't track. I'll do this on escalation, breakthrough, and conquest, and it still doesn't track. It won't track on stand alone, it won't track on squads, and it won't track on bots. Please fix this, it's annoying and Busch league.