Half-Life: Black Ops

Half-Life: Black Ops is a fan made Half-Life game originally released as a mod on MODDB but later in 2007 was homebrewed on to the Sega Dreamcast. The mod is based of the Black Ops from the original Half-Life. The game was not developed by Sierra or gearbox but its engine was created by Valve. The Developer and creator of the mod HLMODCHECKER created the mod.

Plot
You play as Black Ops officer Dedan Walker as you must setup the nuclear bomb to destroy Black Mesa. After the events of the first Half-Life you make your way though Metro City (another version of City 17). Unfortunately the Metro Police are near Black Mesa to have been diseased by the Xen creatures. The citizens in the city have been evacuated to shelter. While the Black Ops are heading to Black Mesa to start trouble with Adrian Shepard and his HECU buddies, your main focus is to hunt Dr. Gallagher. A scientist managed to escape the facility and contains a mysterious briefcase that he has that the player has to retrieve.

The player must journey through a number of locations as you try to track down Dr. Gallagher's movements and whereabouts. Moving from hideout to hideout and discovering enemies both Alien, Zombie and Human alike along the way.

Videos

 * https://www.youtube.com/watch?v=7D-zjSI5LKE