Standard ports often feel empty or glitchy. The enhanced "Better" versions offer: Working monitors and security doors.

Since you aren't using the Steam Workshop, you need reliable third-party repositories. These sites host .gma or .zip files that you can manually install. 1. GameBanana

Files are scanned for viruses and usually include all necessary textures (materials) so you don't see pink/black checkers. 2. GMod-Fan