Escape from tarkov and Arma 3 ace gun play/customization/realism/difficulty in a futuristic fallout type world. Bullets are not hit scan, each magazine is accounted for and reloaded individually, realistic damage multipliers, insanely advanced AI that is designed with oversight by actual combat veterans, no console release at all so focus isn't on pleasing 12 year olds who can't afford a PC, you can only save once per in game day so any mistakes or deaths are extremely punishing, and no rpg skill system like in other games in which you eventually become a walking God killing everything in sight with just your stare.
Fucking tell me this game wouldn't cost less than the triple A garbage being spewed out every year and still more than double their profits. Unironically it's 2020; if people want to play an arcade type shooter that's the same old song and dance, they have so many fucking options. A game that focuses on realism first would be great. But unfortunately I don't ever see it happening.