http://battlefield.wikia.com/wiki/Battlefield_Hardline:_Criminal_Activity
Battlefield Hardline: Criminal Activity is the first expansion pack for Battlefield Hardline. The expansion's focus is on Criminals performing small time crime jobs on four urban maps designed for close quarters combat, taking place in both California and Florida. Two of the maps also take place at night.
The expansion includes the new Bounty Hunter gamemode, as well as four new Enforcer exclusive weapons, 2 new vehicles, two new attachments, a new gadget, and Headgear items. The all-kit M1A1 sub-machinegun was also released for free for all players alongside the expansion, including those who do not own the expansion.