Update to the Dandy Jack mini quest? Anyway here are the steps I followed with screenshots
1. Locate the dead sniper outside rail crossing, on the platform before you head to the train. Note, I found the body after finishing up the Faceless and train situation for rail crossing.
http://steamcommunity.com/sharedfiles/filedetails/?id=12825844732. Loot corps and make sure to read the note
http://steamcommunity.com/sharedfiles/filedetails/?id=12825844113. Head to the location in the notes for the meeting, the fight is pretty tough, but easy if you position right, there are good choke points for bear traps and lots of room for caltrops. Then after you win loot the bodies, I'll post screenshots of the loot pools I got so people know if it is worth their effort.
Loot pool for Dandy Jack, I did one shot him after he stepped on a bear trap so he may use one of his super soldier drugs in an extended fight.
http://steamcommunity.com/sharedfiles/filedetails/?id=1282583951Loot pool for Steelhead who I assume is a Ironhead underboss.
http://steamcommunity.com/sharedfiles/filedetails/?id=1282584250Though no unique loot some of the stuff from the two named enemies are of high value.
Steelhead's glove is has a value of ~11K and armor of 12-13K value
Dandy doesn't really have anything notable besides the super soldier drugs, but his modded .44 Pistol may be good for some people.