Already did this in Fallout... And Assassin's Creed. lulz jk but seriously
I don't care what it's called or what it would look like (see fallout and AC for references), but I would like a military combat simulator (realistic cross between Call of Duty and Arma 2) that had to be used by anyone who wanted to vote yes on going to war... If we could vote on that. Heh.
close enough: https://www.youtube.com/watch?v=k7n5kRRHDpw