Looks like Treyarch wanted to give its PS3 Call of Duty fans some love by promoting this special offer.
Anybody on the PS3 can download the first Call of Duty: Black Ops 2 DLC, ‘Revolution’ in the store starting this weekend and should last till June 24th. It should be available in the PlayStation store titled, ‘Revolution Free Trial’
The DLC should contain 4 new multiplayer maps: Grind, Mirage, Hydro, and Downhill. It should have the new SMG gun the Peacekeeper, as well as the Zombie map Die Rise.
Treyarch’s third DLC, BO2: ‘Vengeance’ should be available on PS3 sometime next month.