I think that a new gun in the game would make it funer to play but not just any gun will do I was thinking about a RAIL GUN. A RAIL GUN would be able to mine out blocks faster then a pickaxe would and also be able to do damage other players and mobs in the game. It would use the battery cells as a power source like the butlerbot does to but a little different in a way it would use one every 5mins so you would have to have a lot of the battery cells to use it for a long time. A mrk2 would have better mining and speed and damage on it. A mrk3 would have the same but better and also it would take longer to use more battery cells. This gun would be fun to battle some one and would also be fun to mine with also it would be cool to see it firing a red beam of light as your mining or batting. So this is why I think this gun whould make the game more fun to play.