Problems with team fortress 2

What is the name of the map/level editor ?????????????? plz someone Answer: (Only For PC) if you have Team Fortress 2 you should get a tool called 'SourceSDK' in the tools section of the steam window, after that, In source SDK there should be a Hammer tool in there, but before you open that tool make sure the engine is team fortress 2. For help, google it smart one.