I think guns and rocket launchers would add a much more new experience to game. It gives players something new to work up too. I do think adding too much different types guns is a bad idea though as it would overwhelm the player and it would be too hard for them too find which one is best or even if guns are worth it. I have been trying to get you to have guns added to mesecraft for a long time annnnnd finally! Yay! I also think you should make most big guns expensive to balance things.
A blocky survival game.