Battle Types: there are a few limiting types of battles which limt the scope of the units that can be used, such as sea battles or air battles.
Some ground battles limit the weight or type of units
Sea Battle - only sea subs and aircraft can be used
Air Battle - only aircraft can be used.
Border Skirmish No heavy armor
Raid only airborne or maine decks can be used
Battle Types: there are a few limiting types of battles which limt the scope of the units that can be used, such as sea battles or air battles. Some ground battles limit the weight or type of units Sea Battle - only sea subs and aircraft can be used Air Battle - only aircraft can be used. Border Skirmish No heavy armor Raid only airborne or maine decks can be used