I FOUND IT!!!! THE DEBUG MENU FOR OFFLINE PLAY. HIT "-" ON YOUR NUMPAD. Enjoy modifying the weapons, giving yourself new weapons, testing spray patterns, damage outputs against differently armored targets, learning bot spawn locations, changing AI difficulty, and more! Note, your mouse cursor may disappear, however, you can browse the menu with your arrow keys, and select with enter. ENJOY!!!
I just decided to post it here since i couldn't find it pretty much anywhere online. Gotta spread the love though! This should also help people see if hit reg is an issue, test which weapons are one shot kills (slugs), see if head shots produce different effects against heavily armored targets vs non-armored targets, etc. Being able to turn off the AI to test these things is super nice.