As you can see on the picture, CS:GO used to show the guns firerate and such, which tbf wasnt the most important, but it also showed the Kill Reward, as in how much money you get from getting a kill with that weapon, which honestly is a very important thing to know.
I know its not game breaking or whatever, but it was a nice feature, that just isn't in the game anymore, now you just have to know that a Nova gives you 900$ per kill, theres nowhere in game to see this, and i think thats a shame.