Yes, im wondering if there was a onehanded or twohanded trait like in fallout series. There probably isnt but just wondering if someone made a trait mod that might be cool for rifle or pistol users. Thanks if anyone knows.

I don't think there is. But that is probably because the game doesn't recognize the difference between one and two handed weapons (at least stats wise, I guess it does to check to allow the character to hold something in the off hand, though this can also be circumvented for melee weapons).

Who knows? Maybe they considered it, then realized that NPCs compulsively equip strange things with no consideration for their skill and to-hit chance, and decided that sounded horrible.