Controls are good, aiming is like Goldeneye 007, which I dig. The music is great and very much like the cheesy 70's action shows this seems to try to emulate.
My only complaints are seemingly invincible enemies with white helmets and vests at the end of the demo and the unnecessary jumpscare in the third floor of the University.
I found a bug where if you keep firing the MP40 or MG48 when moving against a wall the camera sometimes puts you in the sky. From there you can hitscan all the enemies in an area without taking damage.
Overall promising demo.