video game character, Garry's Mod, sandbox environment, physics-based interactions, prop manipulation, character posing, face posing, ragdoll, combine soldier, headcrab, crowbar, gravity gun, tool gun, construct map, flatgrass map, multiplayer session, creative building, spontaneous gameplay, dynamic shadows, interactive objects, physics puzzles, user-generated content, modding community, Steam workshop, ambient lighting, 3D models, sandbox game, first-person perspective, screenshot artistry, digital props, virtual physics, game engine, Source engine, Valve Corporation, PC gaming, mod culture, in-game creation.