So i was playing online and seen this server did some ace gun views.. I know that you need to change the fov i have done it in my map.. But how did they make it look this good? Looks ace

What exactly is different from the stock-settings?
As far as I see, they just reduced the blur when aiming.

i think the weapon-fov was change in the first picture if you mean this:
open up the weapon-file and search for "adsZoomFov", change that to whatever (if you set it to your normal FOV, then you dont zoom in if you ads..)
i also use this in my maps, cause i think with this, you give the weapon another "feeling"..

hope it helps