Deathstreak bonuses
In Multiplayer mode, die in certain times to unlock bonuses.
| Unlockable | How to unlock |
| Final Stand | 4 deaths (unlocked at Level 32; puts the player into Last Stand mode upon death with the primary weapon) |
| Juiced | 4 deaths (increase movement speed for a few seconds upon next spawn) |
| Martyrdom | 4 deaths (unlocked at Level 51; drops a live grenade upon death) |
| Hollow Points | 5 deaths (unlocked at Level 71; bullets inflict more damage for one kill). |
| Revenge | 5 deaths (displays position of thelast enemy that killed you on the mini-map) |
| Dead Man's Hand | 6 deaths (unlocked at Level 57; puts the player into Last Stand mode upon death with C4 equipped) |
Verified by: this cheat is unverified
Submitted by: anonymous on October 12, 2011
Weapon Proficiencies
Here is the list of weapon proficiencies you can unlock for every weapon in Call of Duty: Modern Warfare 3.
| Unlockable | How to unlock |
| Kick | Reduced recoil. |
| Range | Increased range. |
| Attachments | Equip two attachments to the same weapon. |
| Focus | Reduced flinch when shot. |
| Melee | Faster melee. |
| Stability | Reduced sway. |
| Impact | Better bullet penetration through walls. |
| Speed | Faster movement with weapon equipped. |
| Damage | Shells do more damage. |
| Breath | Hold breath while aiming down the sights. |
Verified by: this cheat is unverified
Submitted by:
Anonymous Reborn on January 19, 2012
How to tell you are host (All Platforms)
This works for all platforms of Call of Duty: Modern Warfare 3.
When you are in a public lobby and the game is starting, if the music stops when the countdown says "Match begins in 1", you are the host. Another way to tell you are host after a Host Migration is when the screen goes black for awhile and goes back to the normal gameplay screen after the game has chosen a new host. If you see that, you are the host.
Verified by: this cheat is unverified
Submitted by:
Anonymous Reborn on September 02, 2012
How to tell you are host (PC Version)
This only works on the PC version of Call of Duty: Modern Warfare 3.
Press Tilde (`) or Shift + Tilde. If a Remote Console (or Rcon) shows up. Then you are the host. This is more noticeable with Shift + Tilde because it shows the entire killfeed from the round before.
Verified by: this cheat is unverified
Submitted by:
Anonymous Reborn on September 02, 2012
Ladder - Aim Time
Prior to climbing a ladder, press the melee button, and then begin to climb.
If timed correctly (for example the ladder on Seatown), the character will no longer need to bring out his gun and therefore upon reaching the top of the ladder, the gun will already be brought out ready to fire.
This can save time and may benefit in you getting a kill.
Verified by: this cheat is unverified
Submitted by:
Whelan on April 12, 2012
Quicker Melee
<font size=1>Remember you could melee faster with Akimbo USP .45s in Call of Duty: Modern Warfare 2? Well you can still do it in Call of Duty: Modern Warfare 3. Just equip USP Akimbo and use your knife, you will noticed that you will be pulling out your knife faster.</font>
Verified by: this cheat is unverified
Submitted by:
Anonymous Reborn on December 22, 2011