Titanfall's first DLC pack is called Expedition

At PAX East Respawn Entertainment revealed the first map pack for Titanfall and it will be called Expedition. Three maps - Swampland, Runoff, and War Games are included. These are set after the campaign.

"In the wake of the Battle of Demeter, IMC Expeditionary Forces travel deep into Frontier space to recover from their recent defeat. On an uncharted world, the IMC begin construction of a new fleet operations base, using newly acquired water collection and filtration plants to support the new base. When drainage operations reveal ancient ruins and artifacts of an unknown origin in a nearby swamp, Spyglass activates an archaeological team to investigate the site. To maintain battle readiness at the new base, IMC Pilots use simulation pods to train for anticipated Militia raids, based on lessons learned in Angel City and IMC Airbase Sierra."

Expedition will hit PC, Xbox 360, and Xbox One in May at will set you back $9.99 (or equivalent) and is part of the $24.99 / £19.99 season pass that will consist of both paid and free content.