http://borderlands.wikia.com/wiki/To_Arms!
Thirty collected guns leads another objective where a three-way stand-off between rival PLA members Tim Pot, Tom Pot, and Tum Pot. All three are scaled roughly in level, and Tim Pot will have a slightly higher level than the other two. All three carry submachine guns. When one PLA member is chose, he must be aided in the fight against the other two.
I’m surprised that picking Tim, Tom or Tum doesn’t seem to make much of a difference. Apparently Tim is the best choice because he’ll be a higher level? In BL2 these standoffs always had a more dramatic difference.
Anyone try all 3 over time and notice anything more distinct?