This is a stolen and uncredited port of Nightmare House 2, a Half-Life 2 mod, for Left 4 Dead 2. That's why the textures are in a separate folder. As for the port, it's generally a shitty job, especially the saferooms, which are just locations with a saferoom door floating in the air. This features lame attempts at jump-scares, physics props, environmental damage, pits of death, areas that kill you if you go too far without warning, cut-off textures, successive tanks, and horde triggers just for the sake of having hordes. The fact that the textures aren't even incorporated into the .vpk should immediately tell you about the quality of this campaign right off the bat. The only thing that makes this not completely suck is the fact that Nightmare House 2 wasn't a bad mod to begin with. But you can instantly tell that this wasn't intended for Left 4 Dead 2 and most of it simply doesn't work well for the game. NOT worth the 1.2 GB download or the 3.4 GB of space this takes up. The porter no doubt didn't know how to really use Hammer so don't expect any updates to fix the obvious and easily correctable issues by anyone proficient with the level editor.

The layout and design of the campaign is well done, but there multiple problems with this map. Bots won't pick up items and they'll often get stuck in certain places. There is also a lot of sound sequences that won't play. The console said that most of the sounds were missing from the directory, even though I put the sound files in the correct area. Music, environment, announcer, Emily and other audio files will not play no matter what I do. The jumpscares are very poorly done and there are too many hordes. The waves of zombies in the asylum are ridiculously large and it's completely unnecessary. If your going to publish a campaign like this, you need to finish and fix the map, or get help from a professional modder.

Pretty fun campaign, not sure how you will fare in expert, but I didn't get hit much during the huge horde sections. Really long and well designed, perfect navmesh. Bots couldn't pick up a few items here and there, like the stuff on the finale, but that was about it. That's about it, I didn't encounter any glitches either.