This is a simple idea. A large weapon varient. Simply put, if you connect 8 weapons of the same type, and make them all children of one more weapon of the same type, it will convert the parent weapon into a large weapon (and remove the children). The large weapon will be 3x3, and have proportionally increased stats, with a minor bonus. Said large weapon won't be particularly better than the smaller parts of the same volume, but will simply be more epic (and cheaper on the physics engine). Anyway