There is a tier list but unfortunately it is discontinued, so with the spirit of making a "guide" I decided to do a tier list 2.
This list will be different, I will not include the sniper (since there is already a guide about it, very complete). Nor will I include weapons that I have not yet tried 100%.
The images that appear in each one are not the best settings I've tried (unless otherwise noted in the description).
Before making the list I want to clarify that the universal weapon does not exist. The weapon's functionality depends on the map, enemies, equipment and game mode. So this list is an average of these factors (for this reason I do not include the sniper) as well as the ease of use of the weapon.
I also assume that the user does not use any type of chipset
Let us begin
S Tier Best tier overall, allowing achieving most kills / best outcome in most situations. (You will want to have some of these weapons in almost any game)
Maybe it's the best weapon in the game, the ease with which you can make head shots (or kill 3 bullets thanks to its speed) at almost any distance is incredibly stupid.
The problem with this weapon is its slow recharge as well as the inability to use the drum
Its stability and speed perimten kill incredibly fast at any distance: thanks to its damage you can kill with only 3 bullets.
In my opinion the most lethal weapon of the game (a little opaque by the F2020).
It is more accurate and stable than it feels. In short and medium range you can make head shots in an extremely simple way, the firing speed added to the cbc1 and the 2511-L-B will make killing 3 bullets look like a joke.
In long distance you will have to push a little more.
A simil between the f2020 and the seburo c30, this weapon allows a drum although in my opinion it will not be necessary because its rate of fire is not so high.