The text of the Mucianus Inscription - so far as it survives – lists the appointments he held and, often, the rank at which he held them. The Greek gives the equivalents in that language of the Latin terms that would have been used by the Roman Army. These last are listed below insofar as they can be read or deduced from the inscription.
... In the ranks ... :1.
MILES, COH. I CONCORD... - i.e. served as an infantryman in a cohort of
auxiliary infantry,
Cohors I Concord...; :2.
LEGIONARIUS, LEGIO II PARTHICA - served as a legionary (infantryman) in
Legio II Parthica: :3.
EQUES, COH. VII PRAETORIAE - served as a cavalryman in
Cohors VII,
Praetorian Guard; :4.
EVOCATUS - had served out his time in
Coh. VII of the Praetorians and had made a sufficiently favourable impression to be then invited to re-enlist.
... in the centurionate ... :5.
CENTURIO, LEGIO XIII GEMINA, PROTECTOR - promotion to the rank of
Centurion in
Legio XIII Gemina, with the additional title of
Protector (Augusti Nostri) (i.e. designating him a member of Gallienus's newly created Imperial Bodyguard) :6.
CENTURIO PROTECTOR VIGILUM; CENTURIO PROTECTOR URBANICIANUS, CENTURIO PROTECTOR COH. V PRAETORII - indicates three successive postings as a
Centurio Protector, in: (i) the
Vigiles; (ii) the
Urbaniciani (i.e. the
Cohortes Urbanae); and (iii)
Coh. V, Praetorian Guard; :7.
PRINCEPS PROTECT(ORUM) - appointment as the Principal Officer of the
Centuriones Protectores;
... Equestrian appointments ... ''From this point on the listing of Mucianus's postings is based on reconstructions of the damaged inscription text which are often disputed''; :13.
DUCENARIUS, PRAEFECTUS … - Mucianus was in
Mesopotamia for this posting However, other commentators either evade the issue. or imply that Mucianus was exercising a purely military function – perhaps commanding an (unidentified) legion as a
Praefectus Legionis agens vices legati :14.
PRAEFECTUS (AGENS VICE LEGATI)(?), LEGIO XIII GEMINA - Equestrian commander of
Leg. XIII Gemina.
Mesopotamia has been suggested as the location. A date as late as 280 AD has been suggested; :15.
DUX(?), EQUITES MAURI ET OSROENI - posting as a Commander (
Dux) of a composite force of Moorish and Osroene Cavalry; :16.
PRAEFECTUS (AGENS VICE LEGATI?), LEGIO II TRAIANA - Equestrian commander of
Legio II Traiana Fortis. It is conjectured that Mucianus exercised this command in Egypt; :17.
DUX(?), LEGIO IIII FLAVIA ET LEGIO II ... - posting as the commander of a composite force comprising
Legio IiII Flavia and one of the legions enumerated
II or substantial detachments of these formationsWhere Mucianus exercised this command is unknown. However, it is possible that the legion was engaged in one of the wars with Persia undertaken at this time - again see
Legio IIII Flavia Felix. Alternatively, this command could have been exercised in
Thracia - see below; :18. Posting in
Thracia, possibly as governor == Finale==