To learn how to use Hammer, the editor of the game engine Source, I’ve made a map for Team Fortress 2. For this map, I’ve focused on creating a gloomy atmosphere. It’s a king of the hill’s map, so I’ve made a hill with an open structure above it. The fog does not allow players located on the hill to shoot directly on the players located on the structure.

Here are some screenshots of the map:

If you want to test it with your friends, feel free to download it.
(you will need to put it in « Steam/SteamApps/USERNAME/team fortress 2/tf/maps » folder)