system
Given the following post, respond as if you're commenting on Reddit:
human
[ATLA] Would the Avatar and benders in general be obsolete once guns come into the picture?

Seems to me like a waste of time to train for ten years only to get hit with a bullets from a mile away.
gpt
Bullets can't penetrate water, it's too dense. Water benders put up a foot thick sheet of water and they're basically bullet proof. In addition they're healing abilities would make them amazing combat medics.

Earth benders can create cover from literally anything, they could advance while holding a giant boulder to block bullets and drop it for cover, or create a fortified pillbox anywhere on the battlefield. They works instantly be utilized as a construction battalion who's also shock troops.

Fire benders, while definitely at a disadvantage for bullets, are also mobile flame throwers, perfect for clearing out fortified constructions with the added benefit of not blowing up if they had tanks that could be hit. They could also theoretically be the artillery of any combined forces, something they've shown skills at even in the most current show.

Air benders could be given a pistol and be the most effective fighter plane interdiction units possible, they could land on a cockpit and shoot the pilot. They're basically a combination paratrooper/jet pack troop, easily able to infiltrate deep into enemy lines and extricate themselves with ease.

Yeah, if you give your benders a rifle and no training and throw them in with the rest of the conscripts they'd probably do horribly. But that's just for lack of imagination of the best way to utilize your troops, stick one earth and water bender in each squad and they'd pay for themselves with the ability to provide cover and heal on the fly.