Looking back at WW2, it seemed pretty barbaric to what can be implied now. Apart from the Kamikaze shit, people just ran at each other's faces guns blazing. From what you see of modern engagement though, people almost never do that shit anymore. If they're even confronting each other to begin with anyway, it's like there's so little unit combat anymore; everything is through surveillance and missile strikes.
But what would a modern full-blown war look like? Would we just go back to charging at each other or is it some variation of that covert warfare?