The mod itself have some good concept, but there's some problem
1. show the version of the mod (A17, A16 etc)
2. Make it rubber bullet come out from a special gun would nerf this mod a bit.
3. make dis mod compatible with other gun mod (i'm using 20th century weapons mod, the \ to activate rubber bullet doesn't affect it in anyway)
4. as an alternative, make the activation of rubber bullet as a thing that you click, rather than using something in the keyboard ( \ / ), so it'll be easier to detect if the rubber bullets working or not