Dead Ops is a top-down shooter and it supposedly includes all the available guns in the game to tons of power ups and perks.

The included video shows how to unlock the mode and a preview of the mode.

Shaq has made it no secret that he wants to fight in the Octagon.  An avid follower and practioner of MMA, he would be the perfect fighter to take on Hong Man Choi.  THQ took note of his passion for all things MMA and has included him in this year’s iteration as a secret, unlockable fighter.

Code following the break.

D = Down
U = Up
L = Left
R = Right

Code: R – U – L – R – D – L – U – R – D – L – X – Y – Y – X – START

[via ESPN]

The  recommendations in this guide are geared toward the Hardcore/Insanity difficulty.  Since almost all enemies have an extra layer of protection or two (Armor/Barrier/Shield), this takes into account which combinations are most effective at stripping away an enemies defense.  On the lower level difficulties, where you don’t need to worry about extra defensive layers, then feel free investing points into other abilities such as Pull, Throw, Cryo Blast, etc.  When you mainly only need to take into account enemy health, then that’s where classes such as the Adept and Vanguard, shine.

10 Useful Tips Before You Get Started

1. Miranda is the single most useful squadmate to have with you.  Her Passive Squad ability bonus to health and damage is rivaled by none.  Since she has both Warp and Overload, you’re also prepared for any defenses.
2. Grunt is a pure tank.  With twice as much health as any other squadmate, faster health regeneration and strong melee attacks, you couldn’t ask for a better team mate to dole out pain.  Grab him right after you get Mordin and Archangel.
3. As a bonus skill, Reave is a good replacement for Warp (Warp will be your best friend throughout the game) if you don’t have access to it.  However, Warp Ammo is the most versatile ammo power and a better option if you lack the firepower.
4. Try insanity only after you already beat the game on a lower difficulty level.  The starting Mineral, Credit and Advanced Training Ability will be immensely helpful.
5. When you start a mission, equip every gun with a special ammo type if you have one available.  This way you don’t have to worry about equipping the ammo during a firefight.
6. Concentrate on evolving your Passive Ability and Class exclusive power ASAP.
7. Pick your squadmates on particular missions to make up for your own weaknesses.  (Classes like the Adept are better suited for squadmates that augment your own biotic abilities instead of your lack of offensive options.) Thane/Garrus if you don’t have a sniper, Grunt if you don’t have a heavy hitter/tank, Samara if you need a biotic/crowd control specialist, etc.
8. If you’re on a second playthrough, you should have plenty of Element Zero available.  Don’t be afraid to respec your character for specific missions.
9. Do Tali’s recruitment mission ASAP so you can get the Tempest SMG and Geth Pulse Rifle.
10. .  Almost always go squad when evolving an ammo ability.  Bonuses to everyone in your squad is much better than just you having a more powerful ammo.  Especially since your teammates don’t run out of ammo.

* Spoilers ahead

*Squadmates will vary from mission to mission.  The recommended Squadmates are the ones I found most efficient at facing a variety of enemies and on the most difficult missions (i.e. Horizon, Collector Ship, etc.)

*The recommended builds listed for each character is assuming that you plan on maxing your Commander Shepard’s abilities out (At max level 30, 51 Total Squad points will be available for distribution).

ADEPT

Adept’s can go an entire fight without firing a single shot.  You have the ability to decimate enemies using only a combination of your powers.  Singularity is easily one of the best biotic abilities in the game.  Set the singularity at a chokepoint and watch as enemies get sucked right into it.  While you may have trouble in the early going, when your abilities have higher ranks, than this class creates chaos on the battlefield.  For the most part, pick squadmates that augment your own biotic powers.  There are, however, some missions that require you picking members that cover up your own weaknesses (i.e. Synthetic heavy missions.)

Recommended Squadmates: Thane & Jacob
Advanced Weapon Training: Assault Rifle – gives you an offensive punch with good range
Recommended Build:

ENGINEER

This class won’t do much damage on the battlefield.  The combat drones are useful distractions, especially when you have multiple drones fighting for you.  However, with limited offensive options, you’ll mostly be sitting back directing others.  However, this class is good for stripping away defenses, almost on par with the Sentinel.  So if you don’t mind letting your teammates do most of the killing, then take the Engineer.

Recommended Squadmates: Grunt & Thane
Advanced Weapon Training: Assault Rifle – gives you an offensive punch with good range
Recommended Build:

INFILTRATOR

This will also be referred to as the Ninja class.  If you like to silently stalk your enemies and believe in the motto, “One shot, one kill”, then this class was made for you.  The class power gives you Sniper zoom slowdown with a damage bonus.  This way you can sit back and lineup headshots.  Once you have Operative Assassin and Assassination cloak evolved, you’ll begin to understand why the Infiltrator is so deadly.

Recommended Squadmates: Grunt & Miranda
Advanced Weapon Training: Sniper – the Widow is the strongest gun in the game
Recommended Build:

SENTINEL

This is the most versatile and arguably the best class to use on Insanity. Having the powers necessary to strip away any type of enemy defense, it makes picking your squadmates that much easier.  The limited arsenal for the Sentinel means you should always have someone in your party with an Assault Rifle and Sniper.  With the Tech Armor, you’re basically a tank, so you can soak up a lot of damage when necessary.

Recommended Squadmates: Grunt & Thane/Garrus
Advanced Weapon Training: This depends on your playstyle.  Sniper if you like to sit back and let Tech Armor soak up damage while you line up headshots.  Shotgun if you want to get up close and personal.
Recommended Build:

SOLDIER

If you prefer to be the heavy hitter, then the Soldier will fulfill those needs.  Having access to all weapons (minus the SMG), you’re prepared to fight under any conditions.  Also, with a lot of health available, you can be the tank of the squad.  With the wide array of arsenal available, you’ll be directing your squad to take down protection while you go in and finish them off.  Playing as this class makes the game feel more like a straight up shooter.

Recommended Squadmates: Miranda & Thane/Zaeed
Advanced Weapon Training: Assault Rifle – Revenant is amazing for close-mid range combat
Recommended Build:

VANGUARD

This caters to a very specific type of player.  If you’re really aggressive and love to face enemies head on, then there’s no better class to use.  While there are plenty of risks involved playing with the Vanguard, I found it to be the most enjoyable class to use.  There’s nothing more rewarding than Charging into an enemy and then blasting him away with a shotgun.  Many will argue against using this class on Insanity, but a Heavy Charge coupled with the Claymore/Eviscerator shotgun can decimate even Geth Hunters in seconds.  You will also rely on melee attacks with the close proximity of enemies you put yourself into.  Put points into evolving heavy charge/champion ASAP.

Recommended Squadmates: Miranda & Thane/Garrus
Advanced Weapon Training: Assault Rifle – This way you can weaken enemies from a distance and then charge in and finish them off with the shotgun.  I liked the Eviscerator (which you get from the start if you downloaded the DLC) over the Claymore because of the larger thermal clip, range and near equivalent damage.
Recommended Build:

"I purchase something nearly everyday on Xbox One day I received a peculiar error, "80169d4," which stopped me from making my purchases. I was not happy, and thinking it was temporary I tried the next day and once more after that. It still did not work, and I even tried a point card but alas, nothing.

Someone said that this error is due to a mismatch of my credit information and Xbox profile information. Here’s how to fix it:

• Make sure that your Live profile matches your credit card, with NO ABREVIATIONS. My credit card is registered under Street and I put my profile address as St.
• Second, make sure your XBOX.com profile matches.
• Third, your email must match.
• Fourth, call 1-800-4MY-XBOX. Tell them your account is locked and you cannot add points, they will transfer you. The proper agent will walk you through it making sure it all matches. After that, it will be resolved within five business days.”

Thanks again to xJesusIsDeadlyx for the tip (It was edited for length).
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