I’ve reached 40 as my own assignment a few days ago and for now I’m taking a break from Havoc.
Nice build, but for more consistent oneshots on Dreg Gunners on Havoc 40 I use Surgical, since I’m already using bolter as a sniping weapon.
I also use Grenade Tinkerer and Grenadier for more boss damage and to stop Bulwark squad spam instead of the reload talents that you chose.
By the way, the best way to kill Twins is to stick Krak Grenades on them as soon as their shield goes down, since their shield is time-based, and not % of HP-based. When their shield is down, you have approx 10-15 seconds to deal any amount of damage that you can, and actually if you stack Ogryn’s taunt and full stacks of Focus Them, you can instantly oneshot one of the Twins…
I alternate between those two melee weapons for horde clear. Chainsword is really good for orange buff modifier in Havoc where horde enemies survive for longer.
