If you ever watch any serious Gamebattles TDM match you'll see how lame, yet more realistic, it is.

It's a total camp fest, people holding their ground, hoping to grab a slight lead to even camp harder to defend the lead. It's CTF with kills/deaths instead of flags. Doesn't matter if you have more video game courage or not. There's playing smart and then playing dumb. Like you said... people are going to be dumb and allow you to be smart. Camp hard with a sniper and take all the in the open runners out.

The 1v1 Gamestop tournament is the same way... get a 1-2 kill lead and camp hard making the other person look for you where he'll most likely not see you by the time he sees you and shoots you in the back, and that's not even taking into account spawn trapping (people have already learned every spawn on rust and where they'll spawn based on where they killed them last and from where). Throw stun grenades into the mix and it's camp spawn trapping heaven. (Lame not fun).

The aggressor as long as they know where the campers are gets the advantage due to lag regardless, because they will always see the camper before the camper sees them seeing as the rushing person is forcing the other into view.

If you're being the deggressor by getting cover (taking yourself out of view) you're also giving the other person the advantage because even though you're in cover the other person still sees you about to get into cover (hence the wtf moments where bullets are coming through thick objects to kill you when youre out of view on your screen). That's what every confrontation is... a fight to be the aggressor to get that advantage. If you see someone looking at you get cover before he starts firing, because on his screen he most likely already has.