Heavy Swing > Maim > Storm Eye > Fracture (Keep it up) > BB Combo/SE Combo depending on threat position.

Brutal Swing, Internal Release, Berserk on CD

If threat is far from MT, Defiance > Infuriate > Unchained > Till duration over. > Defiance off
on other scenarios, Defiance > Infuriate > Inner Beast > Vengeance (If available) > Combo till Defiance CD off if at 4 Wrath follow up till Inner Beast before turning off.

Also on another note, try to land Berserk on Unchained as it will generate 1 more Wrath.