after the Events of Half Life 2: Episode 2, The Resistance Found the Entrance to Aperture Sience somewhere in a Big Wheat Field, Though the Combine engaged them and Enflicted Heavy Casualties for the Resistance. Soldiers set up in a Temporary base at the entrance of Aperture, They are still trying to open the Door to it

Alyx: Waiting for Gordon to Arrive at the Aperture Entrance

Sam: Dragging a Dead Soldier

Phil: Praying for his Survival