i don't know much about mods but this footage shows 2 things that stuck out to me.
1) when you do a dash or sprint in GoW you only have a little bit of control when you're trying to make your character turn. on these videos when you sprint (the camera is at a low point of view) you're able to turn your character quite a bit.
2) in GoW if your character isn't hugging the wall he'll ALWAYS been on the bottom left part of the screen but in the Ghostbusters footage the camera switches points of view while the character is out in the open near the end of the video.
now, i dunno what constitutes to being a mod, but i've never heard of a mod that comes with different controls and camera angles. heh...but like i said, i admittedly don't know much about mods.