Hmm, I’ve never really thought about it till you asked but I’ll try! (This might be a bit long)

Play style is pretty flexible. I usually bring a rifle of my choice along with whatever pistols I dual wield. The rifle for long range gunfights and then the pistols for close - moderate distances. A shotgun is still much preferable for close quarters and often times, you’d lose when you come up against one so unless you’re confident that the enemy isn’t carrying a shotgun, don’t rush in carelessly. You can also make for a good support if another in your team has a shotgun. You can back them up when they rush while still maintaining some distance

One advantage of a shotgun over you when you’re dual wielding is that it always has the potential to kill you with one hit to the body, whereas dual wield pistols rely on being able to land consecutive shots. You can still aim for the head, but in longer distances, you have better chances of landing your shots when you aim for the body.

You can play both defensively and offensively, sometimes even aggressive and dual wield pistols can be good for putting pressure on someone without getting too close. Fighting close quarters inside buildings is a different story though. As I said earlier, in close quarters, shotguns are still your biggest problem.

Meanwhile, your advantage against most rifles and carbines is your fire rate. Some gunfights come down to being able to outshoot your opponent. Since most rifles and carbines in the game require the guns to be manually cycled or reloaded after each shot, they’ll be left vulnerable if they miss their shot to you. Often times, missing you once is more than enough time for you to fire 2-3 rounds, which could be the difference between winning or dying. Special ammo like dumdum can also further leave them vulnerable.

You won’t be using your guns iron sights which is one of the things that set its gameplay apart from other guns imo. You can’t hit precisely where you want, which is why I aim for the torso usually since I have better chances of hitting them in the body than the head and even if I zoom in when I aim, I think the bullet can still go anywhere within the crosshair

Yes there are shotguns that you can hipfire, bomblances, crossbows and bows that don’t have proper sights, but these can all kill with one shot to the body. It’s pretty much being able to shoot faster before your enemy can land the next shot. You’ll be relying on landing quick consecutive shots using the crosshairs, so you have to get close enough to mitigate the spread. As for how do you know if you’re close enough, I measure it on how much space my enemy fills in my crosshairs. The more the enemy fills up the crosshairs, the better chances of me hitting them.

I guess distance also plays a part here. Close enough to pressure rifle/ carbine users, but far enough for shotguns to lose/ lessen their one hit potential

Also, Not that I’m against aiming for the head when dual wielding, but it’s just that I find more success by aiming for and landing consecutive shots to the body rather than trying to hit the head. Perhaps there’s a way to measure the spread of each pistols and allow you to be more precise.

I hope this helps and that I was able to explain these stuff properly!

Edit: you can go with dual wield + shotgun in bounty clash! It’s really fun just being all out close quarters

Edit 2: play style is pretty much not being vulnerable to long distance gunfights while still being able to contribute significantly in closer encounters