Minecraft: WORKING GUNS with 5 command blocks [1.8.1] (No mods)

How to make working guns in minecraft. Firstly type in these gamerule commands: /gamerule commandBlockOutput false /gamerule doTileDrops false Command block commands: /setblock ~1 ~ ~ redstone_block 0 destroy /execute @e[type=Snowball] ~ ~ ~ /particle cloud ~ ~ ~ 0 0 0 0.05 1 /testfor @e[type=Snowball] /playsound fireworks.blast @p ~ ~ ~ 50 /execute @e[type=Snowball] ~ ~ ~ /effect @e[type=Zombie,r=2] 6 1 4 true Music: Driving Force | Jingle Punks