How about something like a damage condition wall, walls are supposed to be broken down not dissapear into mid air. I'm not sure if theirs something that can do this but how bout something like, a damage controlled wall, (affects all types of Bricks) for different bricks, they've got different damage controlls, example. Someone lays a wall, (will have a timer but a bit longer) in basing, if you shoot at the wall, it would have.. say 10000 life ish.. the more you shoot at it the more it breaks down.. when it hits 0, it'll disappear and the life could drain fast.. like put a seperate timer on it for an automatic drain, and a bigger drain when its hit. (In basing that could go by fast) .. just a suggestion..