Guides/GoldSrc

This guide will explain how to take HUD-less screenshots on GoldSrc-based games/mods.

Counter-Strike 1.6

You must open the game and, without having previously entered a map, type map [mapname] in the console. You will appear as if you were in Half-Life, without weapons and without HUD. Then you can just use sv_cheats 1 along with noclip to freely navigate the map.