Half-Life: Decay - Surface Call

Cross, Green, and Rosenberg reach the surface, with the objective of accessing the Satellite Communications Center. However, they find the front door to the Comm Centre locked, forcing Cross and Green to circle around through nearby warehouses to get to the unlocked back entrance.
SPOILER ALERT: This video may spoil you. Please buy and play the game, be patient and ONLY IF you don't succeed the current level watch this video.
decay.half-life... - to play!