The 218 MB compressed version of Battlefield 2 is likely a highly compressed version of the game that can be downloaded and installed quickly. However, be aware that highly compressed games may not run as smoothly as the original game, and may require additional steps to get working.
Right-click your compressed file and select "Extract Here".
The History Of Battlefield - Part 5 - Battlefield 2, the best Game?
:: ========================================== :: CONFIGURATION :: Change this if your BF2 folder has a different name set "GAME_FOLDER=." set "OUTPUT_NAME=BF2_Highly_Compressed.7z"