About This File
This mod will unlock 10 Sandbox levels from the campaign that you can explore freely. There are no objectives, alarms, or helicopters to worry about, and you have UNLIMITED AMMO. Some of the maps may be a lil absurd(looking at you, About/Credits map) but I figured if I can do it, then why not ¯\_(ツ)_/¯
Follow the instruction in the ReadMe to install.