Half-Life 2 Mod - Contingency v0.1.0

Facing insurmountable odds and with no hope of rescue, there's only one thing you can do: hold your ground and face endless waves of enemies in a suicidal yet heroic effort to save as many future victims’ lives as possible. You will not survive.
As a member of an elite rebel fighting force based out of City 17, you and your four comrades have found yourself in a most hopeless situation: an unstoppable horde is approaching, one that cannot be defeated even by the likes of you.