All the best FPS games use cone fire, because of the way it compounds poor shooting position and tactical disadvantage. CoD kids with mouse aim partners are doomed to a world of aimhacks, redundant weapon classes, no scoping and jigsaw maps. If you don't like to miss your shots, you better learn how to fight.
LMGs are inherent more accurate in both single fire and sustained fire because of their mass. Cone fire is actually an asset to LMG because it allows you to zero deflinade fire, at ranges nobody could return accurate fire either. At 700m, you're both pissing into the wind, but the LMG has a box magazine and doesn't overheat.SMG suffers drop off, you have to aim above your target which is often actually higher than your sight picture. At that point you've got no idea what the fuck you're shooting at. To do this you need a full stock and aperture scope. Which is the VSS. With cone fire the SMG could kill a sniper, if you had enough time to set up on them. But at medium to long range you wouldn't be and to hit shit. The SMG doesn't do "less damage" at range, its just far harder to aim it.SBR isn't really less accurate than AR, it's got a longer lead time. So with cone fire, you'll struggle to hit moving targets or zero anyone. But your rifle isn't inherently less accurate it just means you can't sustain fire to lead a target. Cone fire supports machine pistols because 1/4 of it falls below point of aim. So if you aim for the head and recoil carries your point of aim above target, a quarter of the rounds will still land because they impact under the point of aim. That's why they're bullet hoses, not chainsaws. You can use them to break contact.Snipers don't have cone aim, they have a higher MOA. So at close range you can in fact spam fire but you'll get a chainsaw not a cone. So no quick scope. And this is also what makes them effective at extreme ranges. But you can still totally get killed by an SMG at 800m if he's got a scope, is set up on you, and fires 30 rounds in a row from a bush. That's chechenya, the menace of plinking rifles. Games just work better that way, this isn't an argument for realism. Game balance is only achievable with cone aim.
In summation cone fire is only a problem for players who use their weapon in a capacity that it wasn't designed for, and who then cry about it. While nobody likes missing, only zoomers think that is "unfair" to miss a shot. The game as a whole works better with cone fire as a class balance, and cone fire is a far better balance then damage drop off (battlefield) or ADS time (CoD). Arma has enormous open maps but you don't see people aimbotting each other across the map. Why? Conefire.