| Arcade Mode |
| Beat the game on any difficulty. |
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Successfully complete Campaign mode. Pause game play in Campaign mode, then select "Options" to access the "Cheat" menu. To unlock the cheat options, find the indicated number of hidden Intel pieces. Note: Cheats must be reactivated after losing a life.
A Bad Year: 15 Intel.
Cluster Bombs: 10 Intel.
CoD Noir: 2 Intel.
Infinite Ammo: 30 Intel.
Paintball: 8 Intel.
Photo-Negative: 4 Intel.
Slow-Mo Ability: 20 Intel.
Super Contrast: 6 Intel. |
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| Golden Weapons |
Complete the indicated task to unlock the corresponding golden weapon version.
Golden AK-47: Complete all assault rifle challenges.
Golden Desert Eagle: Reach level 55 "Commander" rank.
Golden Dragunov: Complete all sniper challenges.
Golden M1014: Complete all shotgun challenges.
Golden M60E4: Complete all LMG challenges.
Golden Mini-Uzi: Complete all SMG challenges. |
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| Mile High Club |
| Complete the game on any difficulty. |
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| Multiplayer Level Up List |
A list of what you unlock when you advance a level in Multiplayer.
| Unlockable | How to Unlock
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| 3x Frag (Perk Slot 1) | Reach Level 41
| | AK-74U | Reach Level 28
| | Bandolier (Perk Slot 1) | Reach Level 32
| | Barret .50 Cal | Reach Level 49
| | Bomb Squad (Perk Slot 1) | Reach Level 14
| | Boot Camp Challenges 1 | Reach Level 09
| | Boot Camp Challenges 2 | Reach Level 15
| | Boot Camp Challenges 3 | Reach Level 18
| | Claymores | Reach Level 23
| | Create-a-Class | Reach Level 04
| | Dead Silence (Perk Slot 3) | Reach Level 44
| | Demolitions Class | Reach Level 02
| | Desert Eagle | Reach Level 43
| | Double Tap (Perk Slot 2) | Reach Level 29
| | Dragunov | Reach Level 22
| | Elite Challenges | Reach Level 51
| | Elite Challenges 2 | Reach Level 53
| | Elite Challenges 3 | Reach Level 54
| | G3 | Reach Level 25
| | G36C | Reach Level 37
| | Golden Desert Eagle | Reach Level 55
| | Gun Challenges | Reach Level 05
| | Humiliation Challenges 1 | Reach Level 42
| | Humiliation Challenges 2 | Reach Level 45
| | Humiliation Challenges 3 | Reach Level 47
| | Humiliation Challenges 4 | Reach Level 48
| | Humiliation Challenges 5 | Reach Level 50
| | Iron Lungs (Perk Slot 3) | Reach Level 26
| | Killer Challenges 1 | Reach Level 30
| | Killer Challenges 2 | Reach Level 33
| | Killer Challenges 3 | Reach Level 36
| | Killer Challenges 4 | Reach Level 39
| | Last Stand (Perk Slot 3) | Reach Level 08
| | M1014 | Reach Level 31
| | M14 | Reach Level 46
| | M1911 | Reach Level 16
| | M21 | Reach Level 07
| | M4 Carbine | Reach Level 10
| | M60E4 | Reach Level 19
| | Martyrdom | Reach Level 17
| | Mini-Uzi | Reach Level 13
| | MP44 | Reach Level 52
| | New Playlists | Reach Level 06
| | Operations Challenges 1 | Reach Level 21
| | Operations Challenges 2 | Reach Level 24
| | Operations Challenges 3 | Reach Level 27
| | Overkill (Perk Slot 2) | Reach Level 38
| | P90 | Reach Level 40
| | Prestige Mode | Reach Level 55
| | R700 | Reach Level 34
| | Sleight of Hand (Perk Slot 2) | Reach Level 20
| | Sniper Class | Reach Level 03
| | UAV Jammer (Perk Slot 2) | Reach Level 11
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