Dig Deeper has been awesome and challenging... though there is one itsy bitsy problem. Orcs only wear armor, not clothing, right? Well, this means archers go into battle with their lower arms and hands exposed, while wrestlers charge in stark naked. "So what?" you say.
All I have to do when Orcs raid my most recent fort, carved into a glacier, is sit back and wait for them to the weather to solve my problem. Even during summer months, the wrestlers just plain die, while the archers' arms fall off become unusable due to frostbite. Suffice it to say, this removes their ability to use their bows. After this, I just tempt the survivors into my Corridor Of Doom, where my Marksdwarves, safely behind fortifications, fill them with ☼mammoth bone bolts☼.
tl;dr: Due to Orcs not having clothes, only armor, Orcish wrestlers freeze to death, and Orcish archers lose their arms, in sufficiently cold climates. I may leave the survivors alone for a few seasons and see if winter kills off those with fully covering armor.
EDIT: Oh, and ADD ME.
EDIT 2: Upon examination, the arms are still attached, just yellow wounded.