Pre-lim idea's for corp ranks... Sorted from lowest to highest.
Cabin boy's - Entry level position, everyone is a cabin boy at one point or another.
Shellbacks - Proven Pilots, promoted from Cabin Boy's, these pilots will be regular members
Golden Shellbacks - Above and beyond pilots, think employee of the month status. Title will rotate between players as needed.
Powder Monkeys - Similar to a striker, but around these people, fights just seem to be generated at a whim. They have the gift for pew.
Strikers - Solo artists, similar to a Powder Monkey, but these people like to operate alone, mysterious breed those Strikers.
Quartermasters - Director/CEO level position, democratic appointment only.
BONUS POSITION
"Plank Owners" - Initial Corp members. First 5-15 not sure how many, there will never be more, will have access to the Plank owners hangar, and will retain this title even if they leave the corp at some time and come back.