Changed Weapon Pack add-on to the redux version.

Changed Weapon Pack add-on to the redux version.

- Blocked off a crate that would make the zombie AI unable to reach you.
- Made the radiation outlines more visible with props as the poison clouds weren't enough to indicate players where the radiation ends and starts.
ALWAYS USE JUGG WHEN RUNNIN' THROUGH RADIATION OR YOUR SKIN WILL MELT :(
- Another lore document added in discussions!

Initial addon creation.