When helping my teammates repair the tank tracks, I found that the repair points were greatly reduced.
I did hear some rumor about the abuse of repair scores. And +45 score each part is indeed a crazy gain, but changing it to +5 is a bit overkill and will make players feel that it is not worth helping teammates and reduce teamwork.
I propose to change it to {+10 | variable} and limit the maximum score you can get from a tank to {100 | variable}.
you had people driving tanks into water and then having their friend repairing them. same with barb wire and medics abuse and some other abuses that i cant remember right now.