With the announcement of the latest Back to Karkand trailer, DICE also revealed a new feature that will come bundled with Back To Karkand: Assignments. Basically, Assignments are a set of tasks that players have to complete in order to unlock one of the ten new weapons in Back to Karkand. For example, in order to complete the “Let it rain” Assignment, players have to get 20 kills with a Light Machine Guns and two mortar kills, in order to unlock the QBB-95 light machine gun.
There are 10 total assignments, each unlocking one of the new weapons. The Assignments can be worked on both in Back To Karkand and in regular Battlefield 3, and once unlocked, the weapons can be used in regular BF3 as well.