The mode, which comes as part of the new game's updated Spec-Ops suite, has players competing against increasingly difficult waves of enemies (in the Horde/Firefight fashion) across Modern Warfare 3's multiplayer maps.
USA Today teamed up with Infinity Ward's Robert Bowling on a map called Dome, described as a "derelict Cold War-era desert radar command bunker".
"After a few waves, the attack dogs became suicide bomber dogs that exploded a few seconds after you shot them. The next wave brought the kamikaze soldiers who exploded similarly."
Modern Warfare 2's near-invincible juggernauts also return for the Spec-Ops mode, the publication says, and this time there will be several different types of them.
"You definitely have to change up your strategy as the enemy changes up. Obviously how you fight the kamikaze dudes is different from how you fight the normal dudes and how you fight a dog is different from a dude and how you fight juggernauts, they are not only big and armoured, so they will just brute force come at you. But they each have their own way of being taken out effectively."
In Modern Warfare 3, Spec Ops gains its own progressive ranking system, online matchmaking system and leaderboards.