Both Battlefield and Call of Duty are very highly acclaimed first person shooter video games that have been a favorite of the players since their release.
The first of the Battlefield series was initially released in 2002 using a Refractor engine and since then it has had almost 11 games and 12 expansion packs and over the years it is reported to have had a fan following of more than 50 million players.
The Call of Duty was initially released in 2003 and since then have had a monthly active player base of more than 40 million players with more than 2 million paying annual players.