I know each plane already has squad insignia, but why not take it a step further and have a pilots insignia painted on a plane as well? As an option, ofcourse.
For example, the spitfire has the squad insignia just underneath the front of the cockpit. A place on the rudder assembly for a 30x30 personal 'avatar' letting everyone know who'se in town?
Or maybe a more historically correct way that I cant think of right now to achieve a similar goal.. ? Suggestions please.