Battlefield 3 is one of the best FPS multiplayer games.

https://www.origin.com/en-in/store/b...andard-edition

For a limited time, you can download it Free (Free Until 3 June 2014). You need to create an origin account, add the game to your origin account. Once you have the game in your account, it is FREE for ever. You don't need to download the game.