Are you brave enough to face your biggest fear? In Nextbot form! Finally, the Gmod npc that has taken the world by storm makes its debut in Source 2! We suggest you play with r_tiled_rendering 0 if you suffer from bad gpu or start seeing squares.
We are sorry for the sound issues, if you have no sound you'll have to restart S&box we have opened an issue: https://github.com/Facepunch/sbox-issues/issues/2461
Also the gravel path is supposed to make sounds when you step on it, but it's not compiled in base s&box