When all your gun knowledge comes from games.
Really shouldn't trust Yukari with guns.
All models used in the video are from the SFM and Garry's Mod Workshop:
Gun models:
https://steamcommunity.com/sharedfile...
https://steamcommunity.com/sharedfile...
Character models:
https://steamcommunity.com/sharedfile...
https://steamcommunity.com/sharedfile...
Sounds:
Insurgency
Half-Life 2
Sorta of a human animation test idk