I see your US/USSR war [url=https://www.youtube.com/watch?v=yIMH50X0F-4]and raise you the Sino-Soviet theater[/url].

Edit: Wait.. mechanical physics don't work? Hmmm... that's a deal-breaker for me.
-Kinda hard to be a survivalist when your knife refuses to open and your bone-joints seize up and that set of bellows you call a lung refuses to respirate.