The game carries on what RE2 started with a continuation of the story, game engine, visual and sound design. There are a few new mechanics and an iconic boss that spikes your adrenaline whenever it appears.

The bad part about the game is that it feels like this one lacks content when compared to the previous game and the all-new dodge mechanic is hard to execute.

There seems to be a bit of replay ability in the game as well. I noticed this first when I restarted the hospital Carlos mission and after visiting the floors in a different order noticed new cutscenes and a different enemy layout.

Overall, the game's plot is a decent escape story, the main villain is fantastic and probably the most memorable RE monster and the game had great atmosphere/ambiance.

An expansion of one of the greatest FPS games ever made. Opposing force tells the story of the game from the perspective of the enemy with a whole lot of new original weapons for the game. The only problem this game suffers from is the plot is nonexistent.

The game has the same fast paced action as the original, so the gameplay is high quality. The new weapons are a welcome addition too, especially the portal gun which can be used to recharge health and ammo by going to a different place. The new rope and crew mechanics are there but are hardly used in actual gameplay.

The bad part of the game is definitely the lack of a central plot. Shepard wants to get out of Black Mesa but is he even doing something about? It seems like he is wandering aimlessly around Black Mesa. Even Blue Shift had a better sense of plot progression like how we hear about Rosenberg, find him, do what he tells us to do. The second thing is probably Race X. I wish they just added more Xen lifeforms, instead of a completely new race that hasn't been explained enough through the side lore material.

Overall, a decent expansion.