not as good as the first three.
-No longer multiplayer. Why not have the guy find a friend to help him hunt for his buddy?
-This one felt less like a shooter and more like a puzzle game. Poor show.
-In one room the enemies respawned while the others stayed dead.
-Health bars went into the negatives. Why? Stupid. If you want to give them more health to make up for the power of the gatling gun then just make a larger health bar, don't let it go into the negatives.
I did like the first three but now I see it going downhill. If it was fixed and a lot longer I would even probably pay $20 for a full game like this. But not as it is.