Pretty low on the hierarchy of Sorting Out Tycho's Issues, but: he's referred to with the above title in Infinity despite not being in it for financial recompense.
Does he call himself a 'mercenary' because 'administrator' was too mundane? Did the Pfhor give him that title simply because they didn't make him, or is that how they refer to all their allies? Was Greg Kirkpatrick thinking of something else (Durandal refers to his BoBs as 'commandos' despite that being a unit of multiple dudes, not individuals)?