Battlefield 4: Community Test Environment asks players to help "test new ideas and solutions to current issues".
Second Assault finally landing on PS4, PS3, 360 and PC next week, too.
Battlefield spin-off code-named Havana rumoured to release this year.
Over 8 million flight hours logged in BF4, and more than 18 billion minutes played in FIFA titles.
Major problems didn't surface until launch, Battlefield boss claims.
Earn free Bronze and Silver Battlepacks each day throughout February.
Mobile anti-aircraft missiles to be nerfed, attack helicopter cannons and rockets improved.