You are Adrian Shephard and its your job to be on the Opposing Force.Who will you be fighting.Just look at half life 1.
Before i get to the story of Opposing Force i will cover a little of the setting. Opposing Force is set in the same location and timeframe as that of Half-Life, taking place at a remote New Mexico laboratory called the Black Mesa Research Facility. In that game the player played the role of the well known (well he is know but back then he was just getting started) Gordon Freeman. A scientist involved in an accident that opens an inter-dimensional portal to the borderworld of Xen, allowing the alien creatures of Xen to attack the facility. The player guides Freeman in an attempt to escape the facility and close the portal, ultimately traveling to Xen to do so. Opposing Force however, shows the events of Half-Life from the perspective of a different protagonist. The player assumes the role of Adrian Shephard, a U.S. Marine Corporal assigned to the Hazardous Environment Combat Unit.
Now with the setting set out i will move onto the story of Opposing Force. The game starts off with you Adrian Shephard in a V-22 Osprey with his squad. His squad are a little irritated that they have not been told what they are being deployed for. As they get close to the Landing Zone at Black Mesa they soon see what the problem is as airborne alien creatures attack the Osprey formation, causing them to crash land. As Shephard regains consciousness he finds out what is going on and that the fight is not going well at all. Orders are made to pull out and as Shephard is about to get to the extraction point the the enigmatic G-Man stops him from reaching it. Thus the evacuation craft leave's without him.
Soon Shephard finds out that there are other Marines who have also been left behind. They team up in an attempt to reach another extraction point near Black Mesa's Lambda Complex, but en route they come under attack from black operations units seeking to thoroughly contain the situation and eliminate all survivors. At this point in the story half life and Opposing Force story link as you playing Shephard briefly sees Gordon Freeman as he teleports to Xen in the final stages of Half-Life. To escape the teleportation chamber, Shephard is forced to enter a separate portal, briefly taking him to Xen before depositing him in an entirely different area of the facility. It soon becomes clear that there is another alien force called Race X. They appear to be attacking both human and Xen forces in Black Mesa indiscriminately. Fighting between the black operations units and Race X quickly intensifies. What happens next...well i will leave that to you the player to find out...Well unless that is you have already played this game then that means you already know whats happens next anyway ;).
With the setting and the story out of the way i will take some time to look at the gameplay of Opposing Force. As i said before this is an expansion pack for a game called half life. The gameplay does not significantly differ from that of Half-Life. The player is required to navigate through the game's levels, fight hostile non-player characters and solve a variety of puzzles to advance. As with the past half life game the player sees everything through the first person perspective of the protagonist and remains in control of the player character for almost all of the game. Story events are conveyed through the use of scripted sequences rather than cut scenes.
Progress through the game's world is continuous; although the game is divided up into chapters, the only significant pauses are when the game needs to load the next part of an environment.
As with most FPS games you battle through the single-player game alone, but you are occasionally assisted by friendly non-player characters. Security guards and scientists will occasionally help the player in reaching new areas and convey relevant plot information. However, Opposing Force also features fellow U.S. Marines who will assist the player in combat to a far greater degree than security guards. Three types of Marines are featured in the game: the soldier will simply provide fire support for the player with a submachine gun, shotgun or machine gun, the combat medic is capable of healing the player and other non-player characters, while the engineer can cut through doors and remove obstacles, allowing the player and their squad to proceed unhindered.
Not only that but Opposing Force also features an extended multiplayer, incorporating the various new environments and weapons into the original deathmatch mode seen in Half-Life. Also after the expansion pack came out they added a capture the flag mode with additional levels, items and powerups.
Opposing Force first came out for Windows in north america on November 1, 1999 and in europe on november 15, 1999.
The system requirements are:
Minimum:
A copy of Half-Life.
Intel Pentium® 133.
Windows 95/98/NT/2000/ME.
200Mb HD Space.
24Mb RAM.
2x CD ROM Drive.
Windows-compatible Soundcard.
Recommended:
Intel Pentium® 166.
3D Accelerator card (OpenGL or Direct3D).
32-bit Internet service provider with 28.8+ modem or LAN.
If your just getting into the half life games be it the first one or the second one be sure not to overlook this expansion pack. It is well worth looking into as it give you a differant view point on the first game.