I suppose I'm Dome Ace Tucker, save for the feminine clothing and flashy appearance. Tactics goes hand-in-hand with knowledge. Battle Factory is using what you are given, while the Dome is using your own movesets to win.
You have to know the game but that's only half the battle. Do you set up with Swords Dance or do you go straight into an attack? Which Pokemon are appropriate for the upcoming battle? Hyper offense, stall or a mix of both? Of course, with the usual OU Pokemon you can win out, but without a definite strategy the game defeats you.