Open world pve build?
with some party support.
If you know you’re going to be with a group then use PS Warrior, the same one used in dungeons.
If you’re going to be mostly solo, then make some tweaks to the dungeon build: switch out Tactics for Arms, and switch out your banner skills for signets.
Gear can be all berserker (or if you’re min-maxing and have ascended, 2 Assassin trinkets and the rest Berserker)