Will take place October 26 to October 29.
In celebration of Killzone Trilogy hitting stores on October 24, Sony Computer Entertainment Europe will be hosting a Double XP Weekend for Killzone 2 multiplayer and Killzone 3 multiplayer.
The promotion runs from Friday, October 26 at 5:30pm UK time, until Monday, October 29 at 9:00am UK time. During this time you will earn twice the regular amount of XP in online multiplayer matches.
The Killzone Trilogy also includes Killzone HD, plus every multiplayer map pack for the second and third games.
Killzone HD will be available independently from the trilogy via PSN.