Just stack DPS mod and WBD+overcap and press Dispatch, Change of Engagement, Sunder, Debilitate, Murderous Rake & Daggerstorm and then whatever you feel like as brig. There really isnt a magical rotation as brigand. 60% of your damage will come from auto attacks, 10% from interrupt, 8% from dagger storm, 12% from Feedback loop+Ethershadow Assassin and the remaining 10% is spread amongst your prestige procs and all of your other combat arts. Only real tip is to skip Dance of Metal, its scaling is horrible.
Yeah noticed the weapons where doing tonnes, interrupt i got to celes so its pretty beefed up on the parse, aside from that. i did swap my weapons to poison / disease damage which seems to be doing a fair bit more than the peirce / slash. bit unsure how that works but it did.