Since most british people havent seen to many guns i am going to make it clear how to use one.

Air rifle
This weopon is simple to use, if you come across one of these i reccomend you spend at least 30 minutes studying it try take a few shots at those z's and soon youll get to grips with using it.This is such a easy weopon to use a 5 year old could shoot it so really i have no tips on this thing.


Air pistol
Alough ive never used one i would imagine that you place the pellets in the magazine push the magazine in to the bottom of the pistol grip and cock the weopon.To cock the weopon simpily grab the top of it and pull back till it clicks i also belive you will have to do this each time you want to fire it.Then after all that aim and fire.

shotgunNow the doudle-barrel shotgun (the type your most likley to find in the uk) loads almost the same as the air rifle there will be a catch wich using it you will be able to flip down the front of the weopon.
There will be two gaps this is were you place the shells (bullets) place the shells brass side up.
Push the front of the weopon up till is clicks aim and fire to unload simply follow what you did to load but remove the shells in stead to putting them in.

SA-80
You probally will not come across a SA-80 so you i will not explain how to use one because if you are lucky enough to use one it will likley be near military personal and he/she will show you how it works if they want to give it to you.

But I will!
Simple really, there is the safety catch in front of the trigger, push it to the right to fire!
Just put the magazine in the right way, pull back the cocking handle, off with the safety, and kill those Zeds!!!
Due To A Comment Below, I Feel At Liberty To Mention the SA-80 is RIGHT HANDED ONLY, or you will suffer from severe burning!
(Good reminder coper19962)