Possible Clues:

• Bilko's rank (Abbr.)
• Pepper, e.g.: Abbr.
• Friday, for one: Abbr.
• NCO rank
• Bilko, e.g.
• Snorkel, e.g.: Abbr.
• ___ Maj.
• Friday is one: Abbr
• Co. leader
• Snorkel, e.g.: Abbr