1. Get Dead Silence Pro ( 70 Close range kills I think. )
2. Look for the challenge Featherweight in the perks category, you should have it unlocked.
3. Find a match and when you get in the game, find a staircase/platform that would hurt you if you jumped off it.
4. Get up to the staircase/platform, jump down, get back up and repeat!
The Featherweight challenge awards you with XP every couple times you jump off a platform that would injure you since Dead Silence Pro is "No Falling Damage".
So just keep doing that and every couple times you jump off ( I think it is 2, 10,25,50,100) , it will give you XP since you complete the challenge!
Have FUN

First off, you want to go to this screen.



Then, right click the "lock" of the title you want, right click it and "Inspect Element"

Then change it from this



To this:

Requirements:
Call of Duty ELITE.
Google Chrome (FIREFOX WILL NOT WORK, EVEN WITH THE FIREBUG ADD-ON. It messes up for some reason.)
Mw3.
and Patience.
__________________________________________________________________________________
Step 1: Go to elite.callofduty.com and login.

Step 2: Go to Career, then hit MW3 Playercard.

Step 3: Go down to custom classes. "It doesn't matter which one you pick but, I prefer the 1st one"

Step 4: Maneuver your mouse over the gun you want, right-click on it, and hit "Inspect element." (For example, I am using the FAD.)

Step 5: **WARNING this is the hard part** When Inspect Element comes up, you will see the first thing highlighted is "". Exactly one space above that should say this
"

1. Pres start.
2. Go to options.
3. Turn color blind assist on.
4. Now stealth bombers will show up orange on the mini-map!

First:
You must be Level 80. Go to CoD Elite and Sign in.

Second:
Go to your classes and change something.

Third:
It should tell you to send changes to the game but do NOT click it. Now in MW3 make Prestige.

Fourth:
Now, play Multiplayer until you reach Level 4.

Fifth:
Now that you are in Level 4, in CoD Elite click on send changes to game.

Sixth:
In MW3 accept the changes of CoD Elite and BOOM your classes are back!!

TUT:

- So first off you need an Overkill Pro class.
- Make 2 Sniper or Shotgun classes and put either speed or damage on both of them.
- Next make a class with NO proficiency at all.
- Now start up the game, have the overkill class on and kill yourself and change your class to the other class you made.
- Simple as that, you now have what ever proficiency the overkill class had on any gun with no proficiency.

1.) Make sure you have 1 prestige token available (ONLY 1)

2.) Have a friend invite you in the Xbox Live Lobby

3.) Go to Barracks > Prestige Shop > Unlock Gear > Perk 1 > Blind Eye and click it ONCE

4.) You should be over the "No"

5.) Have your friend search for any match and then back out as soon as you are both searching

6.) Now you should still have that pop-up but not be able to navigate UP and DOWN

7.) Go to Barracks > Prestige Shop > Double XP and click Yes

8.) Now you should have another pop-up, make sure you click YES to that too

9.) Look at your prestige tokens - it should now be at - 1

10.) Now you may buy everything from the prestige shop that's available to you

NOTE: You do not have to keep doing the glitch. You may just keep buying anything/everything over and over and you'll notice your prestige tokens going down.

As always, you *may* be banned for this, if the servers are able to detect you going into negative prestige tokens.

[/spoil]

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How to Prestige before level 80! Thanks A11ShamNoWow! [PATCHED!]

[spoil]Step1: Get your rank to level 55 or over.

Step2: Get a second account that is able to prestige (level 80)

Step3: Sign in to both accounts.

Step4: Go on xbox live on MW3 and have your friend invite you to a game.

Step5: When in his go to "barracks" then "prestige mode " and then wait.

Step6: Have him/her find a match.

Step7: The screen will then become semi-blurry so then press the b button and leave the game.

Step8: When u r back in your own lobby with both controllers go ahead and continue to prestige but make sure you r using the second controller.

Step9: Now you should be level 1 the next prestige. ENJOY!

Step 1: Go to your Clan Tag, While Game is starting up
Step 2: Type "IW
Step 3: Select "Enter" When the game has started"

Glitch 1:
When in INFECTED:
1.Make sure you have a bouncing betty, claymore, C4, semtex, frag.
2.Every time you spawn simple kill yourself and you will stay on the surviving team so its hard for people to get you because you are always dieing.

Glitch 2:
When in INFECTED:
1.If you die and you dont want to be a zombie/infected back out and have your friend invite you back and you will be on the "alive" team

1.Go to the class you want to use
2.Go to strike package and choose Specialist
3.Choose only ONE perk
4. That's it after you get that perk every kill after that you will get the bonus.

SO it makes it easier to get the title where you get specialist bonus 8 times. AND you get more xp.

Go to theatre watch one of your most recent vids.

Watch the whole thing.

When its over hover over quit.

Then turn of your xbox and pres quit at the same time.

When your ban is up you should be the same rank as you were in the video.

Step 1. Invite a friend or Have 2 Controller's and start up a Hardcore/Ricochet Gameplay.
Step 2. Have a class with Riot shield as PRIMARY and whatever gun you want to rank up as SECONDARY.
Step 3. Find a Spot in the map Where you guys could do this and be safe.
Step 4. Switch from your riot shield to your secondary and Have Your friend or 2nd controller stand behind you and start shooting at your riot shield while you have your secondary out.