Honestly. Except for the unlucky headshot (they never intentionally aim for the head) that looked pretty fair. he was holding the corner you shot from and popped you since you shot his teammate, you can see him stand up and he's visible for a good 1/2 a second before he starts shooting. The fire-rate just sounded like a Suppressed SMG or Val, nothing out of the ordinary.
Thanks for the reply. I will git gud and get back on the horse.