I finally finished all of this game's original campaigns (making it out alive at the end) and I gotta say it's nearly flawless. There are only some levels which I found too anoying, such as the last few stages of Hard Rain and its lack of visibility. But other than that, it's just really fun. I recommend playing this with actual people, since the bot AI can really be a pain in the arse.
I recommend playing this with actual people, since the bot AI can really be a pain in the arse.