Summary at the bottom. I like driving lightnings. To have any effect on the battlefield, I need to be able to flank. People who do so too will know the following situation: You are flanking a MBT or a sunderer and almost got it dead. Suddenly, one or several of the gunners drop out and start repairing the vehicle. This results in them surviving long enough for the other team mates to realize there is someone flanking and destroy your vehicle. Other situations are engis repairing battle sunderers, which already endure a ****-load of damage, making them near unbeatable without far superior fire power. I do not mind if my flanking fails because I was spotted or people are fast to realize that I'm there. I do mind however that when I load several shots into a vanguards rear, have him near burning just for him to pop his shield and his gunner to repair him, extending his lifetime long enough for him to destroy me even though I clearly had the tactical advantage in the situation. Now you might say that I should just shoot the engineer repairing. Well, first of, I run AP when I want to flank and kill vehicles. Shooting engineers with AP running around the tank is a rather difficult thing to do. Secondly, every shot I waste at the engineer significantly reduces my chances of successfully flanking the vehicle. "But Thrustin", you might say, "This is team work and should always beat you solo'ing". I agree that team work should be promoted and rewarded, however, there should be a clear limit to how much power team work actually gives you. I originally was going to propose that repairing should give an armor debuff. Essentially, you can repair mid-combat, but your resistance value will be a lot lower, leading you to take a lot more damage so you definitely cannot out repair anyone. Unfortunately, this would have the large negative side of randoms running up to your tank mid-battle, possibly with bad intentions, and making you loose because they started repairing you. So I thought of an other idea: When your vehicle is taking damage, the repair rate of the repair tool applied on your vehicle gets reduced, similarly to the situation of the back seat repair rate of the harasser. This essentially has the desired effect of reducing the efficacy of mid-combat repair, while removing the drawback of the first suggestion. Summary: Mid-combat repair reduces effectiveness of flanking and adds to the tanky-ness of the already very durable sunderer. Reduce the repair rate of repairing a vehicle when it is taking damage so that mid-combat repairs is less pronounced.