This guide's purpose is to help people understand how to make the Dot crosshair the default one.
Making the ADS Crosshair a DOT One
When you press RMB to aim down sight on default the crosshair changes into a big circle, I kinda hate that in NW we used a different reticle texture but in here I found a way to simply change that in the game settings.
Go to Settings>Game>scroll down to User interface>Untick the Crosshair Box That's it! you're good to go now when ever you aim down sights you will see the same dot crosshair you see when you do nothing.