War is hell, sure, but if the last 20 years of video game history have taught us anything, it's that it can also be pretty darn fun too. It's a lot easier to enjoy the carnage when there are no lives at stake, though.
Heavy Mach is all carnage and zero lives lost. You never fight people directly, just war machines like tanks, helicopters and other such mechanised contraptions. Of course, if you really try hard you can imagine there being people inside them, but it's still pretty far removed from blood 'n' guts warfare.