These are found at the way top of SCN1.BWD files.
Take a look at these numbers highlighted in yellow that come after the words "Star", the first number after "Star" tells the sim what .XEL file to use as an insignia (In GBL, ranges from 00-06), and the second number after "Star" tells the sim what "team" a certain star is on (00 for friendly, 01 for neutral, and 02 for enemy). The number that comes after the capitalized "STAR" tells the sim what insignia YOU use.
This can come in handy for custom scenarios.
...Who want's to play as a Smoke Jaguar?
