EA have announced that Battlefield Heroes has reached the 7 million registered players milestone and is celebrating by offering in-game boosts until the 15th March.
"During this time, gamers from around the world will receive a pack including 77 bandages, 77 Battlefunds and 77 wrenches just by logging in. The celebration doesn't stop there! For a limited time, players can also take advantage of a cool store offer. For only 777 Battlefunds, players get a 7-day XP boost, a 7-day VP boost, a 7-day Sarge's stamina boost and 777 tonics"
You can get your codes and find out more at the official Battlefield Heroes site.