Buying & Selling options should be change to have more of a convenience. Say for example. When purchasing items in the shop in gameplay. You should be able to select the items by category, instead of having to scroll through a big list. Such as in if you want to buy a SNR(Sniper) then those items you should be able to select & see all SNR for example & so forth with every item in the shop.
Now as for selling items in your inventory. A sell all option would be nice, instead of selling one by one which could be a pain.
Wouldn't you agree? Developers