revision 1.0 ------------ EN: *Port models from Half-Life 2. *New portraits. *New music and sound from Black Mesa. *Fix removed the pilot's picture. *Replace smiles and arrows from my ODST mod on Alien Swarm....

Este addon esta basado en el Crossbow de HalfLife 2 / This addon is based on the Crossbow of HalfLife 2...

Blast aliens from first person view. Subscribe to the challenge whenever you want. You don't need to unsubscribe or disable the addon when done playing. ...

Replaces marines' radio click sounds with Half-Life 2 Combine radio click sounds....

Replaces the Assault Rifle with the MP7 from Half-Life 2 Check out my other skins: http://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=922461065 Credits: Model, sound and textures created by Valve Ported by me...

Replaces the Vindicator (Officer Shotgun) with the SPAS-12 from Half-Life 2 Check out my other skins: http://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=922461065 Credits: Model, sound and textures created by Valve Ported by me...

Replaces the Tech Assault Rifle with the AR2 from Half-Life 2 Check out my other skins: http://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=922461065 Credits: Model, sound and textures created by Valve Ported by me...

Replaces the Desert Eagle with the Revolver from Half-Life 2 Check out my other skins: http://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=922461065 Credits: Model, sound and textures created by Valve Ported by me...