I’ve never really tried asking for something like this, but I’ve been trying to fine tune a build for Veteran themed around the Double Barrel, and I think I’ve arrived at the best combination for me, which includes using the Combat Knife for armored elites and boss damage, which allows me to use the DB for fun. The only issue is that it takes a three talent investment in the bottom left part of the tree in order to get to the talent which increases clip size, which I consider kind of an important part of running the DB (you really feel the difference between two and three shots).
You do get 25% additional ammo and 10% toughness dmg reduction for the other two talents invested in order to reach the clip size talent, and those aren’t useless (especially with a low base ammo gun). But, there are far more valuable things that would be nice to take instead.
I feel like it’s a fair request given that the build isn’t (and still wouldn’t be particularly meta). But it’s also not awful either.
The swap would be between “Keep their heads down” (+75% Ranged Attack Suppression) and “Lock and Load” (+25% Clip Size, rounded up), which are very close to each-other on the tree. I’ve never taken “Keep their heads down,” and I doubt it’s very popular, but I could be ignorant about its potential (perhaps in bonus damage to suppressed style builds).
It would make Lock and Load available with one less talent investment, so you’d probably see people using it a little more frequently. Though personally, looking at my builds for Recon Lasgun, Plasma Gun, Helbore, Bolt Pistol, and Heavy Bolter (the guns I use most on Veteran in Havoc), I’d probably only really consider using it on the Heavy Bolter build (maybe) if it were moved, as it would be a two talent investment for that build. I don’t really use the Quickdraw Revolver on Veteran, but I could see it potentially slightly buffing that ranged weapon, as well as the other shotguns. Just pointing it out as I don’t think it would be game breaking, but might help make some niche, already underpowered builds a little more viable (Not calling the Heavy Boltgun underpowered, but I feel like if you were to take Lock and Load on it, it would be more of a side-grade).
I can make a Gameslantern page for the build and point out why I think the build needs the other stuff if it would help (but it’s based on using the combat knife and DB if that helps). I’ve played with it in some Auric HISTG matches and performed well, but nothing crazy. It’s really meant to be more of a “for fun” but viable kind of thing as opposed to overpowering.