Being a kid in the 80s and playing Operation Wolf is one of the best memories I have of that era.
The Uzi-style machine gun was mounted on the cabinet (how epic was that!), with realistic recoil feedback. As a kid growing up watching Stallone and Arnie movies, this game was beyond awesome.
You're basically a one-man army on a hostage rescue mission in enemy territory (a generic South American-inspired "banana republic" setting). The goal is to fight through six stages: Jungle, Village, Ammo Dump, Prison Camp, and Airport - to free captives and escape safely.
The game feels heavily inspired by 80s action movies like Rambo and Commando, with over-the-top carnage and just mowing through whole platoons of enemy soldiers - in other words: Pure fun!
Hard to find the right words to describe the feeling but I am sure that anyone who grew up in the 80s will have played this game at some point in time.