Now, this is more my kind of scenario. It's a pitched battle outside - with no surprises, just out and out slogging it. The enemies will charge you as well, so you don't have much time to prepare - organise your groups and their positions before-hand, and how they will fight, so that you don't need to reorganise mid-battle.

There's nothing to describe, though. Simply use whatever troops are necessary to deal with the enemy that's attacking. If a hole breaks up in the front, then seal it quickly before enemy troops get through - then you're fighting a difficult battle. You want to make sure you're the one doing any penetration through lines. Also, make sure you get the Goddess' Dress, in the top right-hand corner. You may need a flyer, or Teleport.