War Hero. Killer. What Am I ?

When I first arrived home in May 2013,
six months after the latest war had ended, nightmares started.
Doctors told me that war veterans are commonly at risk for PTSD.
I have those terrible flashbacks, and nightmares!
This is one of them!

I must try to control my dream.
Do do that i need to collect 12 clocks!
Anything that come in my way i will shoot.
I Must Kill My Demons. I Must... WAKE UP.

Instructions

W A S D to walk around
Mouse to Look around
Left Mouse Button to Fire
Right Mouse Button to Aim
Mouse Wheel To Change Weapons
G for Grenades
R to Reload
F to Pickup Items
Left Shift to Run
Left CTRL to Crouch
X to Prone
V to Melee
Space to Jump