Garry's Mod: CS Source image - Garrys Mod for Half-Life 2 - ModDB

You can now pose and position CS Source models and props in Garry's Mod.

Garry's Mod: CS Source 2 image - Garrys Mod for Half-Life 2 - ModDB

Half-Life 2 Maps - (Gmod) addon - ModDB

Why does Garry's Mod use Half-Life 2 props and characters? - Quora

Garry's Mod Nexus - Mods and community

Garrys Mod for Half-Life 2 - ModDB

The best PC mods for Half Life 2

How to install Garry's Mod 9 - Free, with CS:S content

Garry's Mod - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game

Mounting content from other games - Knowledgebase - Citadel Servers

Garry's Mod Now Supports Left 4 Dead 2, Portal 2

CS:S Hands (Remesh) [Half-Life 2] [Mods]

How Garry's Mod Paved the Way for Modern Multiplayer Games

Half-Life 2: Episode 1 Content [Garry's Mod] [Mods]

Does the CS:GO and tf2 maps support half life 2 npc's or any npc's? : r/gmod

Realistic Half Life: Source Sweps addon - Garry's Mod - IndieDB