I think if you crack the chip before you offer it to Royce you end up with Gilchrist.
When I don't crack the chip, kill Royce in dialouge and look at the computer messages from the mole I get Stout. Last time I cracked the chip right after I got it, killed Royce in dialouge after offering the militech chip, read the mole messages and ended up with Gilchrist.