From Wikipedia:
Battlefield 3 is a 2011 first-person shooter video game developed by DICE and published by Electronic Arts for Microsoft Windows, PlayStation 3 and Xbox 360. It is a direct sequel to 2005's Battlefield 2, and the seventh main installment in the Battlefield franchise.
In Battlefield 3's campaign, players take on the personas of several military roles: a U.S. Marine, an F/A-18F Super Hornet weapon systems officer, an M1A2 Abrams tank operator, and a Spetsnaz GRU operative. The campaign takes place in various locations and follows the stories of two characters, Henry Blackburn and Dimitri Mayakovsky.