How to use Chember not understand? Who will explain?
change your attack key , say it is left mouse , change it to middle mouse , and now when you load the cheat , hold right mouse and left together and it will auto chamber, releasing right mouse button while inside a chamber attack will allow it to continue if he attacks but i do not suggest it as you may be hit , it is best to let it do it automatically but it may take longer but this way guarantees a hit and you wont be hit unless the other person has my private version in which case they will destroy you but this is a public cheat which will beat all other public cheats , the private version is much faster and more accurate but that is why it's private.
have fun and good luck