Garena is a video game hosting client that allow players to easily set up tournaments and chat with other players. People who use the client are able to play on unofficial servers with more than 40 million users as of 2011. Garena has added support for "Call of Duty 5," officially known as "Call of Duty: World at War." You must already have "Call of Duty: World at War" installed to connect it to the Garena client.
Click "Game Settings."
Click "Call of Duty: World at War."
Click "Browse" under "Executable Settings."
Find the file that runs the game. This will be an EXE file located in C:\Program files\activision\Call of Duty World at War. Select it and hit "OK."
Exit the options menu by clicking "OK" at the bottom of the screen.
Play a game by either joining a chat room hosting a "Call of Duty: World at War" game or by hosting your own game. Options to do this will be located on the left side of the screen.