Profession:
Mechwarrior, Clanner, Mercenary, Scout, Intelligence operative, Bounty Hunter, or Commander. (Writers choice)
Command/Organization:
If Mercenary, "any" perfered clan coyote, perfered IS federated suns or draconic combine
Equipment:
Battlemech, Catapult perfered if inner sphere, Nova if clanner. (Any if not a mechwarrior)