A few more comments on how to achieve extreme DPS:
In addition to extremely fine tuned DPS characters who form a tiny minority in your team (since too many means damage has to be shared):
I think it can only be done against Orcs, and only if you fight great numbers of them. To begin with, only melees can achieve such crazy numbers, as melees achieve a far higher damage rate per Fatigue (more than double, I think, assuming targets are available). And Orcs are great for melees, because they come straight at you in really predictable tactics. Further, you need to fight a lot of them, probably at least 20, because you need as many hexes filled by enemy bodies to kill, as you don’t want to lose those precious APs or Fatigue on walking to your target.