To understand some of the secrets you need to know Roman numbers.
II = 2
X = 10
XII = 12
C = 100
D = 500
These are the numbers that are not in Roman numbers!
K = 1000 (in fact it means Kilo means thousand)
CCM = 200,000,000 (in Roman numerals is really just 200,000!)
1. A rainbow rank will give you super automatic fire!Edit
"Hurry Up Ship" can help you out, because they are looting Rank Markers that you don't have.