Repairing does not register as score.
For the first few games, I received all the scores for repairing, but after a certain time, it just stops registering, and it has been like this for a day now. You start repairing, and it gives you 2...
Ideas
Temporary fix for the Vehicle Repair Challenge: restart the game and play on breakthrough. Try to have a squad mate drive the MBT/IFV and repair on the move. It doesn’t work everytime but these were the only conditions which helped me progress the challenge bar.