Talk:Seeking Force/@comment-19627751-20131004160707

Grineer Powerfists can be found Grineer Capture missions, including E Prime on Earth, Phoebe on Saturn, Cinxia on Ceres, and more.

I've not verified that they don't spawn in other types of missions, except that they definitely do not spawn in Def, MDef or Survival. You'll generally find 3-5 of them per capture mission making this mod pretty hard to find and probably accounting for its rarity since who the hell runs capture missions...