Combine Assassin

The wearhouse is empty and quiet, nothing but the slow drops of blood from the last remaining resistance member in this area, on the ground dead. You have to hold out this area or do the smart thing, just hide. After a few hours of you enjoying the peace there is a sound of a Combine Dropship in the distance, Combine soldiers are on their way, and little did you know an assassin is also on the dropship.