Scopes are basically used to zoom the view and look at distant objects. Scopes can be spawned easily in the game. Though Scopes provide a better chance to kill the enemy, it has a consequence too, that is the recoil of the gun starts to increase as you equip a high power scope.
2x Scope is mostly used for medium range combat because it provides a really accurate reticle inside the scope, with one circle and one dot so you can track moving target easily but there is also a cut out of invisibility around the scope as well that make you miss outside enemies when scoping in.
You can also use 2x scope in close range as well but in some positions such as pushing enemies inside houses that might have a disadvantage because your scope-in time is longer.
3x Scope is a good scope that mostly uses in a medium range fight. Its reticle is really accurate but complicated at the same time. It requires a certain amount of time to get used to it and know the lead for a bullet to hit a target using 3x Scope.
You can also use 3x Scope as close-range combat and it is surprisingly accurate but the recoil is very bumpy and harder to control.
4x Scope is a true medium range scope that is extremely accurate and simple reticle which makes it the most useful medium-range scope. Having 4x Scope is a huge advantage against enemies, it helps you to land a good direct shot and clear visibility to track enemies target.
4x Scope is mostly used in the medium range but you can also use it in close range as well it is accurate but heavy recoil when trying to spray with it.
6x Scope is a long range scope mostly use on sniper rifles or semi-automatic sniper rifles. Inside a scope, this is a built-in zoom function that can allow you to zoom in or out depending on the range you are fighting against your enemies.
You can also use 6x Scope in close range as spraying scope the recoil is easy to handle and it's extremely accurate but the only rifle that i recommend for spraying with is M416.
8x Scope is a long range scope that can only attach with sniper rifles and semi-automatic sniper rifles. It is also has a zoom function built inside the scope that will allow you to zoom in or out depending on your preference.
Always try to lead your reticle a step ahead of enemies movement to get a good hit in moving target. Because it is a long range scope, in the medium range you can easily snap for enemies head.
Red Dot Sight provides an accurate dot in the middle inside the scope that tells you where your bullets are gonna go.
In close range, the dot is very accurate, but from medium to long-range it will become less accurate and harder to spot enemies.
Holographic Sight provides an accurate circle reticle inside the scope that hardly bounces when firing but also cuts out some of the visibility around the scope that reduce the chance of spotting enemies.
In close range, it is very accurate and the recoil seems to reduce, but from medium to long range it will become less accurate and harder to spot enemies.