Announced last month, the downloadable teaser will be available exclusively for Xbox 360 Gold subscribers this Friday, October 5.
The multiplayer beta features a new mode called Hot Spot, in which players attack and defend randomly-selected locations of the Bosnia-based Sarajevo Stadium map.
It will feature 12 Tier 1 operators from across ten nations, as well as access with six different classes.
Downloading the beta will also net players 60 minutes of double experience when the game launches at the end of October.
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Announced in February, Warfighter's single-player campaign goes beyond the location of Afghanistan from the original game, expanding to global territories.
Campaign missions will feature a degree of choice, elements of co-op and returning characters. A one-shoot-kill hardcore mode will also be included.
It was recently confirmed that pre-ordering the Limited Edition version of Medal of Honor: Warfighter will provide access to a Battlefield 4 beta launching next autumn.
Medal of Honor: Warfighter is available for Xbox 360, PS3 and PC on October 23 in North America and October 26 in Europe.
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Picture gallery - images from Medal of Honor: Warfighter: