Gold camo
Reach Level 31 in Multiplayer mode for a weapon by getting 1,000 kills with it to unlock the Gold camo for the weapon.
Secret killstreak
Get a 25 (24 with Hardline) killstreak using only your gun/knife/equipment (killstreak kills do not count) to get a M.O.A.B. (Mother Of All Bombs). When activated, it will kill all enemies on the map, no matter where they are, as well as disable the enemy's equipment, electronics, and pointstreaks for one minute. Additionally, the team with the person who calls in a M.O.A.B. will get double XP for the rest of the match.
Easy XP
Once you reach Level 20 in Multiplayer mode, use the Specialist Killstreak package to get a lot of extra XP. Create a class with the Hardline perk and use the Specialist Killstreak package. You will get extra points at kills 1, 3, 5, and 7. It will also help you complete the perk's challenges and the Specialist challenges for each perk. You will be completing the perks, and each perk has a Specialist perk challenge to it. For example, if at one kill you unlock Assassin, you will be completing Assassin challenges while also completing the "Assassin" Specialist challenge. You will get a lot of XP as you complete these challenges in addition to the 200 XP you get for kills 1, 3, 5, and 7 each time. This works best in modes where you get a lot of kills. Additionally, you get extra points for kills 8, 9, 10, etc. as long as you have all the perks enabled and have not died.
Easy Blast Shield Pro
Throw a Flash or Concussion grenade at the wall so it bounces back at you and stuns you. It will be counted as deflecting an explosion for the Blast Shield Pro. Note: This glitch was done on an unpatched version of the game.
Easy SitRep Pro
Once you unlock the Trophy System tactical equipment, assign it to a class, and deploy it. Then, knife it, and it will count towards destroyed enemy equipment for the SitRep Pro. Note: This glitch was done on an unpatched version of the game.
Reducing lag
At the multiplayer main menu, select "Options", then disable the "Theater Recording" option to help reduce lag during online games.
Multiplayer unlockables
Reach the indicated level in Multiplayer mode to unlock the corresponding weapon, perk, equipment, or killstreak/deathstreak:
Level 5: Throwing Knife
Level 6: SCAR-L (assault rifle)
Level 8: SPAS-12 (shotgun)
Level 10: P99 (handgun)
Level 11: Blind Eye perk
Level 12: Dragunov (sniper)
Level 13: Scrambler (tactical)
Level 14: PKP Pecheneg (LMG)
Level 15: Hardline perk
Level 15: Revenge (death streak)
Level 16: MP9 (machine pistol)
Level 18: CM901 (assault rifle)
Level 19: Sitrep perk
Level 20: Specialist (strike package)
Level 21: EMP Grenade (tactical)
Level 22: A550 (sniper)
Level 22: Extreme Conditioning perk
Level 24: Javelin (launcher)
Level 26: AA-12 (shotgun)
Level 27: Assassin perk
Level 28: PP90M1 (SMG)
Level 29: Smoke Grenade (tactical)
Level 30: MP412 (handgun)
Level 30: Steady Aim perk
Level 32: Type 95 (assault rifle)
Level 32: Final Stand (death streak)
Level 36: Skorpion (M. Pistol)
Level 37: Bouncing Betty (anti personnel mine)
Level 38: P90 (SMG)
Level 39: Scavenger perk
Level 40: Stinger (Launcher; vehicle lock-on only)
Level 42: G36C (assault rifle)
Level 44: RSASS (sniper)
Level 45: Trophy System (deflects enemy explosives/missiles)
Level 46: .44 Magnum (handgun)
Level 47: Overkill perk
Level 48: Striker (shotgun)
Level 50: ACR 6.8 (assault rifle)
Level 51: Martyrdom (death streak)
Level 52: XM25 (launcher)
Level 53: Claymore (anti personnel mine)
Level 54: MK46 (LMG)
Level 55: Dead Silence perk
Level 56: PM9 (SMG)
Level 57: Dead Man's Hand (death streak)
Level 58: Five Seven (handgun)
Level 60: MK14 (assault rifle)
Level 61: Tactical Insertion (marker to place your next re-spawn)
Level 62: Model 1887 (shotgun)
Level 64: M320 GLM (launcher)
Level 66: MSR (sniper)
Level 68: AK-47 (assault rifle)
Level 69: C4 Explosives
Level 70: G18 (machine pistol)
Level 71: Hollow Points (death streak)
Level 72: M60E4 (LMG)
Level 74: MP7 (SMG)
Level 76: Desert Eagle (handgun)
Level 77: Portable Radar (shows enemy movement within its radius)
Level 78: FAD (assault rifle)
Level 80: RPG-7 (launcher)
Prestige rewards
Reach Level 80 in Multiplayer mode to unlock Prestige mode and the Prestige Shop. Each time you Prestige, you will get one Prestige token. You can use the token in the Prestige Shop to unlock one of the following bonuses or save it for use later. There are a total of ten Prestige ranks. Once you reach the tenth Prestige, you will have the ability to reset all your stats and progress and start over again. You will also unlock exclusive titles and emblems when you reach certain Prestiges, which will never be reset. Note: You can also earn Prestige tokens by Prestiging in Call Of Duty: Black Ops, Call Of Duty: Modern Warfare 2, Call Of Duty: World At War, and Call Of Duty 4: Modern Warfare. Additionally, the Prestige Shop will automatically be unlocked from the start if you have a Prestige token from Prestiging in one of the four listed Call Of Duty games.
1. Extra Custom Class
2. Double XP (2 hours)
3. Double Weapon XP (2 hours)
4. Regular Package (title and emblem)
5. Unlock Gear (unlock a weapon, equipment, or perk permanently, no matter how many times you Prestige; available after the 1st Prestige)
6. Hardened Package (title and emblem; reach 5th Prestige)
7. Veteran Package (title and emblem; reach 10th Prestige)
8. Reset All Stats (reach 10th Prestige)
