[+] Hint: Pack-a-Punch Weapon Upgrades
Hint: Pack-a-Punch Weapon Upgrades Here is a list of all gun upgrades you can get via the Pack-a-Punch machine.
[+] Unlockable: Thundergun in Campaign
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!
Easter Egg: Secret Film In the Zombie map "Kino Der Toten" there is a teleporter in front of the curtain on stage. When you use this teleporter you get sent to the room that contains Pack-a-Punch machine and a window. If you wait about a minute you'll be teleported again to one of several secret rooms. Inside the secret room that contains the presidential seal and a projector, there is a desk. On the desk there is an old roll of film which you can pick up (be warned you will not be prompted to pick it up, you just can).
Easter Egg: Change Music On the zombie map "FIVE," approach the red telephones and hit the button prompted to change the background music. 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.
[-] Hint: Cheat Terminal Login Names
Hint: Cheat Terminal Login Names At the cheat terminal, enter LOGIN and then the following login accounts and passwords to read various people's email. You can also use the DIR and CAT commands to view files after logging in. Note: Enter WHO to see a full list of login accounts.
[+] Hint: How to Beat the Battle of Khe Sanh Trenches
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.
[+] Hint: Pack-A-Punch on Five (Zombies)
Hint: Pack-A-Punch on Five (Zombies) I'm not sure if you guys knows this but me and some friends figured this out. If you want to reach the Pack-A-Punch on the Zombies mode "Five" map: Make a crawler and go into the middle room and adjust the DEFCON level to DEFCON 5. Every teleporter will take you to Presidential Suite. All switches are in that room -- 3 are upstairs and 1 is downstairs.
[+] Unlockable: Pentagon Map for Zombie Mode
Unlockable: Pentagon Map for Zombie Mode 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.
Cheat: Codes On the Main Menu, alternately tap RIGHT and LEFT triggers. After about 5 taps a piece, 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."

