[FULL GAME SPOILERS] Who were the Monsters?

[PathOS]

I've updated the first post with the new information about The first enemy being named "The Construct" and speculation that Adam Golaski was the Jiangshi, as well as the neat info about J. Yoshida being the Tau Power Suit monster.

For some reason I cannot insert any more pictures in the OP. I keep getting an error saying only 4 images are allowed. But I swear I've seen posts that contain many more images than that.