I had an Idea like this once, but it would more have to do with coding and altering the game rather than just making a mod... if anything it would have to be a script.
pretty much its a small rectangular object that could be attached to other objects, and when clicked on would shoot an even smaller projectile in a particular direction that could cause a fracture or something not too op. it would have a set amount of ammunition and would have a cool down time of 20 frames or something like that
i thought it would make for some interesting replays.
however something like this would most likely take a long time and alot of work to make, and would have to be a script.
i dont see anything like this happening anytime soon, at least not without support from hampa with coding the thing into the game
ya
pics