From KnockEmDead1996 | Aug 2nd 2012
This achievement is pretty straight forward.. just start the campaign on any difficulty you want.
From Quiell | Jul 9th 2012
When doing a Single Player Campaign for a COD game, always do it first on Veteran if you want to get the best of your achievements and get them easy. Otherwise, you can just do it on Regular or Hardened though Veteran gives you a Multiplayer feel and is more challenging.
From KnockEmDead1996 | Aug 2nd 2012
In Special Ops, when you see a juggernaut, just start trying to kill him with bullets. Once you think it is about to die, just start knifing until the juggernaut is finished.
20
50/50 Complete a Special Ops Mission Mode game with the same number of kills as your partner.
From trehoy | Jun 25th 2012
You need to be lvl 50 in Spec ops survival mode before doing this. Purchase everything, even the care packages. The last thing you can buy from the Air support armory is sleight of hand.
20
Defense Spending Buy all items from the Survival Equipment Armory.
From JoDee RiCH | Mar 14th 2012
very easy to do because the kills just have to be consecutive. it doesn't matter if you die in between all 5 kmife kills.
20
Kill Box Kill 20 enemies with the Chopper Gunner in a single run in
From trehoy | Jun 25th 2012
The best way to do this is by playing with a friend either over xbox live or split-screen. While playing, make sure neither of you buys any weapons. During the game, only pick up dropped weapons so that you don't waste any money. After a various amount of waves go by, you should both have enough that the money equals up to 50k when you add them together. Now go either the Weapon, air, or equipment armory and have the player who's getting the achievement stand by while the other person goes into the armory and begins pressing X or square so that the other person gains all the money. Keep pressing the button until the player has 50k. If the other player needs the achievement give all the money to him, and then he'll get the achievement