Standard combat uses a wide, side-facing 2.5D camera, slightly elevated. The viewpoint conceptually belongs to the Cartographer observing the expedition; the Cartographer is NOT visible during combat.
The standard camera must comfortably contain 4 Fighters + 1 Porter + a normal enemy formation.
Characters must be large enough that body type is visible, major clothing masses survive, weapons are obvious, Active devices are obvious, and animation poses are readable.
Do NOT make characters extremely small merely to communicate Tower scale. Tower gigantism comes primarily from the environment surrounding the combat plane.