That's it though, you can't assign a skin to a particular plane, only to the squadron. Pat has followed the Neoqb naming standard and all Squadrons in Pats campaign now follow that standard. Using my example from Jasta 10 above, from 01/08/15 onwards every skin Jasta 10 uses will be called "501010.dds", regardless of aircraft.
until 17/03/18 where it will use "pd3a_501010_ans.dds".
The mission builder will just add 501010.dds to the mission skin reference up until the skin change on 17/03/18.
Skin = "albatrosd3\
501010.dds";
The builder will reference what aircraft is relevant for the mission using the plane section and what skin to apply from the Skin section of the squadroninfo file based on date.
As long as you have a skin named 501010.dds in all Aircraft skin folders for each of aircraft that are used, then the skin will display throughout the Squadron's campaign on any aircraft it uses.
If you are after the aircraft designations then the file "AircraftInfo.RoFCampaign" in the data folder has that info.
Also have you downloaded Ansirals skin pack for Pats Campaign. It has a lot of the skins for the various Squadrons and Jasta's used in the Campaign generator?
Linky
http://www.ansirial.it/skins/globalSkinpack.rar