Here is a 4v4 capture the flag map in Team fortress 2 made by Hammer and in Sketchup for the draft. The level is in an abandoned train yard with a huge bloodbath in the middle with plenty area to cover and many sniper vantage points.

Project constraint

​

- Map type : Capture the flag multiplayer.

- Map size : 4v4, 6v6, 9v9 ( 4v4 on this map )

Level design from scratch to engin

Here a video of the map