Infinity Ward has released a trailer promoting the two-player spec-ops survival mode ahead of Modern Warfare 3's full multiplayer reveal at the Call of Duty XP event on September 2.
The trailer offers up no new information about the wave-based defence mode - which features explosive-strapped attack dogs, juggernaut invasions, and the ability to buy perks and upgrades with money earned by killing foes - but allows for the first public glimpse of the mode and some of its maps.
Call of Duty: Modern Warfare 3 will be released on November 8 for Xbox 360, PS3, PC, and Wii.
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