I was looking on the files of the PC port and noticed the textures are stored in bmp and sounds in .wav without some kind of "protection files" (example file001.sur to store textures) and i have found something curious. appearently the game would have a machine gun, there is a texture for the bullets and a file called MACHINE.ANM in the Anim folder, and there is a another magnum with a larger barrel, also i don´t remember ark dog tags in the inventory. I don´t know if those weapons were made for the PC port. Funny the cleaners folders and files are called Hank.
I've not seen any info about this, I don't even know whats different from the ps1 version, other than its extremely buggy..
Terrible game. I recall buying it at launch in the morning and going for a refund the same afternoon.