Ever wanted to have a mission with Firewill aircraft but you don't want your dumb doofus friends putting anime girl insignias on the aircraft? Maybe you want custom insignias to be on the aircraft at mission start?

What's that? You can't figure out what layer the texture goes on? Firewill made this different for every freakin' plane and didn't document any of it and now you have to figure it out yourself?

Well fear not, because I had the same issue until someone on r/armadev taught me how to figure it out! But let me save you some time so you know exactly what to look for.

F-15C and F-15D Index Numbers
17 - Nose Art
18 - Wings
19 - Tail
5 - Insignia (Located behind air intake.)

F-15E Index Numbers
35 - Nose Art
36 - Wings
37 - Tail
6 - Insignia (Located behind air intake.)

F-15SE Index Numbers
36 - Nose Art
37 - Wings
38 - Tail
7 - Insignia (Located behind air intake.)

You can use this script to set the texture to what you want it to be. If you don't already know how to do this, please refer to other ArmA 3 scripting resources.