[francoisD]

i do not think allowing to buy mines and other defensive units in other battles as the defensive ones is a good idea.

simply this does not fit the idea behind such battles.

however i think more variety in the types of battles would be interesting.

for examples corridor type battlesn when all units of a side have to escape from the battlefield.

or decisive victory hexes: you would have 1 to 3 victory hexes with huge point values so that anybody controlling them is guarantee to win decisively the game whatever its losses...

or defensive battles when the defenser is surrounded...

many other ideas could be developped, and as well many man hours time of coding would be required...