I moved your topic to “Player Help” for now, until we are sure what you talk about.
Are you talking about games played with TripleA? Forum games or Lobby games?
I will move your question to the TripleA support category then.
the way i play is that the attacker is the one who just placed the units into the seazone, but i’m not really sure what the official rules say.
no - placing new units is well after the attack phase. Basically the battle begins on the sub-owner’s next attack phase - unless he moves it out of combat into another combat. If the sub is there until the factory owner’s next attack phase, THEN they attack it
or so i believe.