As far as the AA-gun question, its never come up w/ us–we just go by memory (AA guns are not usually captured then recaptured then captured again). If you need help, I suppose you could place a territory marker under the AA gun to show ownership. You’d have to be careful though not to confuse it w/ the marker of who owned the territory! Disputes between allies are very bad in A & A 😉 !
Ozone27