Assignments

Assignments are a feature that appears in the Battlefield 3: Back to Karkand expansion pack. These are objective-based tasks to earn rewards (e.g Kill 20 people with the M16).

Assignment List
There are ten assignments (8 kit specfic ones and 2 for All Kits) to be completed with each one rewarding one of the ten weapons to appear in the expansion packs the assignments are:

Assault

 * Best Friend Forever: FAMAS
 * 10 Revives
 * 10 Heals
 * Professional Russian: L85A2
 * 100 Kills with Assault Rifles
 * 20 kills with underbarrel grenade launcher (Assault Rifle with either the M320 or the GP-30 with the Underslung Rail)
 * Win 5 rounds of Squad Deathmatch

Engineer

 * Fixing it: HK53
 * 10 Repairs
 * Kill 1 enemy with Repair Tool
 * It goes Boom!: QBZ-95B
 * 50 AT Rocket Kills
 * Destroy 1 enemy vehicle with Repair tool
 * Win 5 rounds of Conquest

Support

 * Let it rain: QBB-95. (Type 95 LMG.)
 * 20 kills with LMGs.
 * 2 M224 Mortar kills.
 * Keep your Head Down: MG36.
 * 100 Kills with LMGs.
 * 50 Suppression assists. (As any class.)
 * 50 Ammunition box resupplies.

Recon

 * Specops: QBU-88 (Type 88 Sniper.)
 * 20 kills with sniper rifles.
 * 5 laser designations.
 * Creeping Death: L96A1.
 * 50 Headshots. (Can be done with any weapon.)
 * 50 Spot assists.
 * 5 Knife Takedowns.

All Kits

 * Familiar Territory: PP-19.
 * Arm 10 M-COM crates.
 * Capture 10 flags.
 * Play 2 hours on Karkand.
 * Scarred Veteran: MK3A1 Jackhammer.
 * 10 Kills with PP-19.
 * 5 Kills in DPV Jeep.
 * 10 kills in BTR-90 IFV.
 * 2 hours on Sharqi.
 * 2 hours on Gulf of Oman.

Trivia

 * The Professional Russian assignment most likely refers to the popular YouTube uploader, FPS Russia, who jokes that he is a professional Russian on multiple occasions, even having a shirt available to purchase with the phrase.
 * The Scarred Veteran assignment takes a noticibly longer time to complete for many players due to the need to play a total of four hours on two specific maps. The map-specific challenges are unique to the all-kits weapons.
 * If you complete an assignment in the top row, you get 2500 bonus points. If you complete one on the bottom row, you get 5000 bonus points.