Enjoy a new 28 Map Half-Life campaign. Take the role of Gerald Backman, an industrial electrician interning at Black Mesa at the time of the resonance cascade. Face off against all the enemies from the Opposing Force.
Enjoy a new 28 Map Half-Life campaign. Take the role of Gerald Backman, an industrial electrician interning at Black Mesa at the time of the resonance cascade. Face off against all the enemies from the Opposing Force.
