This is merely a suggestion for another tool in a toolbox. I don't understand how this would be dumbing down anything.
My response to people who are reacting to this suggestion by saying it would "dumb things down" is: "So?"
This is a game. It should be played and enjoyed as a game. No, players shouldn't have access to every little bit of information about every gun and ship. But, we're not talking about some hidden variable that only the elite players will seek out and use- this is
basic information about a gun, alongside "What kind of damage does it do" and "How fast does it fire." Putting a small arc representation on the ship loadout screen will hardly break the meta.
The most common argument against such a change, that I can see, is "Well, you can just figure it out after 30 minutes in Practice." Okay. Or, here's a thought, I could learn that in 30 seconds in the lobby before a game, then spend the next 29.5 minutes
actually playing the game. Even putting how many degrees the arc can turn would remind captains, new and veteran alike, just where their guns will be able to fire.
There are real, legitimate coding issues with implementing this- I think awkm pointed them out earlier in the thread. Everyone else, though, seems to oppose it simply because doing things the hard way makes them feel smarter.