We already have a poll about sneaks, and bottom line is: 80% of the playerbase wants them to NOT being able to murder people and stay invisible.
You certainly mean 80% of the player who read the
english forum section and voted on poll because 26 total votes is probably not the whole playerbase.
Red Orchestra 2 : Call in Recon so you know where the hell to call arty or where you can easily push.
Battlefield : Spotting system for is a HUGE advantage + TUG-S that spots enemies in your mini map (you know where they're coming from, facing direction, etc.
Call of dodo : UAV, Spy plane, whatever the hell they use there.
Rainbow six siege : using mini cameras to tell enemies location is a huge + for your team, marking them is risky but you're letting your team know their exact position.
A bunch of other games where knowing enemy location gives you the advantage...
You mostly talk about first person shooter games, I would argue that FOnline is closer to a top down real time pvp game.
Few examples :
DOTA and LOL both games have heroes with invisibility (can kill the whole team) and mechanics to counter invisibility. (popular games)
Bloodline Champions have heroes with invisibility and no mechanic to counter invisibility except duration, cooldown, etc... (dead game)
I could make a guess and say most top down real time pvp games have character with true invisibility because in those games your field of view is not as restricted as in a FPS game.