Not sure how easy it is to change the % on the repair costs but i was wondering if it could be increased / decreased for say a day or a weekend?
Increasing it so that maybe for that weekend people would be using lower grade gear and weapons or decreasing it so that everyone can freely use what they want without cost.
I know theres lots of issues with balance when it comes to this but for maybe a one of day / weekend or even just on a selected server. Would bring something else to the scene.
Just a thought.