As an example of how little it plays like Gears. I use a Trickster build with Twisted Rounds (with the crit mod), Venators Knife (with the bounce twice and mark more people mods) and Hunt the Prey (with Vulnerable and Slow Mods).
My pump action shotgun has a mod that returns all ammo when it kills and ammo is less than half. It has another mod that causes a massive AoE when it kills. It kills with almost every hit.
Tricksters regain health and shield from killing up close.
So generally I run in chuck Venators Knife around to mark enemies. Turn on twi