Battlefield 3 Cheats, Codes, Cheat Codes, Walkthrough

Unlock the final mission, Eleventh Hour, in Co-Op mode. Play the mission on the Easy difficulty. Reach the area where you must disarm the bomb, but fail to disarm it, and you will fail the mission. You will still get approximately 5,000 XP for the mission, even though you failed. It is possible to get approximately 5,000 XP every 2-3 minutes with this trick.

Co-Op unlockables

Get the indicated number of points in Co-Op mode to unlock the corresponding weapon in Multiplayer mode:

63,000 points: MP412 REX Pistol
126,000 points: KH2002 Assault Rifle
189,000 points: MP7 PDW
252,000 points: M39 EMR
315,000 points: 93R Pistol
378,000 points: SG553 Carbine
441,000 points: G3A3

Multiplayer kit unlockables

Get the listed number of points with the indicated kit to unlock the corresponding weapon or gadget:

Assault Kit

4,000 points: Defibrillator
11,000 points: M320
22,000 points: M416
38,000 points: M26 MASS
60,000 points: AEK-971
89,000 points: M16A3
124,000 points: F2000
166,000 points: AN-94
220,000 points: M16A4 (RU) and AK-74M (US)

Engineer Kit

3,000 points: FIM-92 Stinger (US)
3,000 points: SA-18 IGLA (RU)
7,000 points: M15 AT Mine
14,000 points: SCAR-H
25,000 points: EOD Bot
40,000 points: M4
58,000 points: A-91
82,000 points: FGM-148 Javelin
110,000 points: G36C
145,000 points: M4A1 (RU) and AKS-74u (US)

Support Kit

4,000 points: C4 Explosives
11,000 points: M249
23,000 points: M18 Claymore Mine
40,000 points: M224 Mortar
60,000 points: PKP Pecheneg
90,000 points: M240B
130,000 points: M60E4
170,000 points: M2 IAR (RU) and RPK-74M (US)

Recon Kit

5,000 points: T-UGS
13,000 points: SV98
26,000 points: SOFLAM
45,000 points: MAV
71,000 points: SKS
104,000 points: M40A5
146,000 points: M98B
195,000 points: MK11 MOD 0 (RU) and SVD (US)

Multiplayer ranks and unlockables

Get the indicated amount of XP to reach the corresponding rank in Multiplayer mode. You will also unlock additional weapons, specializations, and camo at certain ranks.

1. Private First Class - 1,000 points: 870MCS Shotgun
2. Private First Class 1 Star - 8,000 points: Sprint Specialization
3. Private First Class 2 Stars - 18,000 points: Woodland Camo
4. Private First Class 3 Stars - 29,000 points: G17C Pistol
5. Lance Corporal - 41,000 points: Ammo Specialization
6. Lance Corporal 1 Star - 54,000 points: Ranger Camo
7. Lance Corporal 2 Stars - 67,000 points: PP-2000 PDW
8. Lance Corporal 3 Stars - 81,000 points: Flak Jacket Specialization
9. Corporal - 96,000 points: Army Green Camo
10. Corporal 1 Star - 111,000 points: M9 TACT. Pistol
11. Corporal 2 Stars - 130,000 points: Explosives Specialization
12. Corporal 3 Stars - 150,000 points: Expeditionary Force Camo
13. Sergeant - 170,000 points: MP443 TACT. Pistol
14. Sergeant 1 Star - 190,000 points: Suppression Resist Specialization
15. Sergeant 2 Stars - 220,000 points: Paratrooper Camo
16. Sergeant 3 Stars - 250,000 points: UMP-45 PDW
17. Staff Sergeant - 280,000 points: Suppression Specialization
18. Staff Sergeant 1 Star - 310,000 points: Navy Blue Camo
19. Staff Sergeant 2 Stars - 340,000 points: G17C SUPP. Pistol
20. Gunnery Sergeant - 370,000 points: Grenades Specialization
21. Gunnery Sergeant 1 Star - 400,000 points: Jungle Camo
22. Gunnery Sergeant 2 Stars - 430,000 points: M1014 Shotgun
23. Master Sergeant - 470,000 points: Squad Sprint Specialization
24. Master Sergeant 1 Star - 510,000 points: Desert Khaki
25. Master Sergeant 2 Stars - 550,000 points: M9 SUPP. Pistol
26. First Sergeant - 590,000 points: Squad Ammo Specialization
27. First Sergeant 1 Star - 630,000 points: Urban Camo
28. First Sergeant 2 Stars - 670,000 points: MP443 SUPP. Pistol
29. Master Gunnery Sergeant - 710,000 points: Squad Flak Jacket Specialization
30. Master Gunnery Sergeant 1 Star - 760,000 points: G18 SUPP. Pistol
31. Master Gunnery Sergeant 2 Stars - 810,000 points: Squad Explosives Specialization
32. Sergeant Major - 860,000 points: PDW-R PDW
33. Sergeant Major 1 Star - 910,000 points: Squad Suppression Specialization
34. Sergeant Major 2 Stars - 960,000 points: SAIGA 12K Shotgun
35. Warrant Officer One - 1,010,000 points: Squad Suppression Resist Specialization
36. Chief Warrant Officer Two - 1,060,000 points: .44 Magnum Pistol
37. Chief Warrant Officer Three - 1,110,000 points: Squad Grenades Specialization
38. Chief Warrant Officer Four - 1,165,000 points: DAO-12 Shotgun
39. Chief Warrant Officer Five - 1,220,000 points: Veteran Kit Camo
40. Second Lieutenant - 1,280,000 points: P90 PDW
41. First Lieutenant - 1,340,000 points: G18 Pistol
42. Captain - 1,400,000 points: Spec Ops Black Camo
43. Major - 1,460,000 points: USAS-12 Shotgun
44. Lt. Colonel - 1,520,000 points: .44 Scoped Pistol
45. Colonel - 1,600,000 points: VS VAL PDW