This is something I have been wondering for some time, and unfortunately I still have not found a reasonable solution.
I've made a few houses with tank turrets on top of them, and in the distance, built some very large targets out of 1x1x1 blocks just to shoot at them for fun! The only downside is that I'm the only one who can blow them up, unless I add events to every single block X_x - It's really lame that even with build priv's I can't blow up someone else's blocks or vise versa. Does anyone know of a solution, or even something I'm missing that already allows us to do this??
-Synth