Call of Duty: Black Oops

Unlockable -  Thundergun in Campaign

Much like the Ray Gun in the previous game, the Thundergun can be unlocked in Black Ops by performing the following specific actions on the level "Numbers." After the interrogation ends, look for six canisters. Toss grenades at the canisters to the rear left and rear right. Shoot the other canisters until smoke is released. A black tape will appear out of a cassette deck. Grab it with the action button. Leave the room and head upstairs. Kill everyone and move to the rooftop and jump to the next floor. Weaver and Clark will move the fridge revealing a weapons cache. Here you'll find the a cassette player. Hit the action button here and you'll put the tape in the deck. You should hear music and the screen will shake and shortly the Thundergun will come out of the wall. Enjoy!

Hint - How to Beat the Battle of Khe Sanh Trenches

At the Battle of Khe Sanh, you're told to clear the trenches. What is missed by most is a nearly inaudible clue telling you that there are barrels full of napalm. And, more importantly, there's no help in telling you what to do with those barrels. Shooting them does nothing. Neither does trying to clear the trenches with one of the mounted machineguns, as the Viet Cong keep pouring out in an endless wave. Nope, you have to run to two of the giant, striped barrels near the bottom of the hill and kick them down into the trench. There are two of them. Hide behind the sandbags and take shots at the VC until it's relatively clear. Make a run for the nearby barrel and use the prompt to stab it and kick it down the hill.

Easter Egg - Change Music

On the Zombies map Five, approach the red telephones and hit the button prompted to change the background music to "Don't Back Down" by Eminem. There are 3 red telephones in all: One by the Quick Revive machine, another on the second floor in the center of the room and a 3rd one is in the room with the Pack-A-Punch machine.

If you shoot the mannequin heads in Nuketown you'll hear "Sympathy for the Devil" by the Rolling Stones. -Drunksocks

In the Zombie map "Kino Der Toten" there are 3 pieces of a meteorite located throughout the map. The first is by the stairs when you start the level. The second is in the "boiler room." The third is in the "dressing room." Hit the prompt when next to the piece and your character will say a line about the meteor -- when all 3 pieces have been found, "115" by Elena Siegman will play. -jacobosin

Also, on "Kino Der Toten," in the first room upstairs from where you start, there are 5 pictures on the right. Four of them are the characters you play as and one is blacked-out. You can examines these to hear your character say something about each one. 

Cheat - Codes

On the Main Menu, alternately tap RIGHT and LEFT triggers (or hold the Space bar on a keyboard). After a bit, you'll stand up. Leave your seat and examine the back wall. A small black and white computer terminal can be found here. Approach it and enter these codes using the on-screen keyboard in the "Central Intelligence Agency Data System."

• DOA - Play the super-awesome top-down Smash TV-style Dead Ops Arcade minigame.

• 3ARC INTEL - Unlocks all the intel in the game for viewing (Disables Closer Analysis Trophy/Achievement).

• 3ARC UNLOCK - Unlocks all levels and Zombie Mode levels.

• ZORK - Unlocks Zork I: The Great Underground Empire (an incredibly great text adventure from 1980) which you can play on the console (!).

• HELLO SAILOR - Unlocks Zork I: The Great Underground Empire (an incredibly great text adventure from 1980) which you can play on the console (!).

• HELP - Gives you a list of commands to interface with the console -- you can check mail messages and perform other mundane functions, some of which are listed below.

• DIR - Gives a list of audio files and pictures which you can open with the CAT command (e.g. CAT NoteX.txt).

• WHO - Gives a list of login names for use with the RLOGIN function (but they require a password).

• RLOGIN - Log in with username and password (full list of logins below).

• FOOBAR - Gives a strange message ("Fee Fie Foe Foo!").

• ALICIA - Loads "Alicia," a virtual therapist.

Unlockable: Pentagon Map for Zombie Mode (Five)

Beat the game on any difficulty to unlock Zombie Mode, where you play as Nixon, Castro, Kennedy, McNamara, beat the game on any difficulty. Alternately, you can enter the 3ARC UNLOCK code in the cheats menu.

Thats it guys....if you have any cheats that are not here then contact me at ourworldvampire@gmail.com. See ya...