When it first comes to things like "people using the BAR get similar K/D ratios as those using different Assault Rifles", I can only ask "how do you know this?" It isn't a number that players can easily see. Eyeballing it in games is also not a very efficient manner as Confirmation Bias starts to kick in. I mean no insult; I am genuinely curious how you have come to this statement.

Stating "Overused Gëá Overpowered" by attempting to show "Underused Gëá Underpowered" with the Laser Rifle doesn't work as well as you would think. The Laser Rifle has a crippling weakness in that it is nearly worthless at close range. At long range it is devastating but so is the Scrambler and Rail Rifle and they are not as crippled at close range. The Laser Rifle is not balanced on it being rarely used; it is balanced by having that weakness. This means the only thing you have been able to show is that the Laser Rifle is a balanced weapon despite not being very used and you are attempting to leverage that into a more commonly used weapon is just as balanced. If you were attempting to say "X isn't used a lot because it is OP because Y is underused and it is OP", it doesn't work well because no one would argue that the Laser Rifle is overpowered.

Saying "this thing is rarely used but when it is used it is really powerful, which makes it barely balanced" is implying that if it were used all the time it would be overpowered. I doubt it greatly. You then move to say "just because the BAR is popular doesn't mean it is overpowered" which I do not believe follows in your argument. You attempt to prove Overused Gëá Overpowered by starting with Underused Gëá Underpowered but you choose a weapon that not many people would question as overpowered. It doesn't work very well.

After the Rail Rifle's kick was nerfed but really when the charge was hit, what weapon did you notice become a lot more popular? I can certainly say I did not see nearly as many BAR as I did before that change happened. The term for a weapon or strategy that might be too powerful but has not been wildly discussed before is Sleeper OP. I think it could be argued that the BAR was Sleeper OP. Whether or not it is overpowered is another thing but I still maintain that your argument, at least how it is currently constructed and how I understand it to be, doesn't stand up as well as it needs to.