This looks very interesting! However, shouldn't be this topic under gameplay mods?
I'm not sure how good you could alter the enemy AI (from the look I had, it's rather hard to get familiar with that), but a really challenge would be a squad which is working together.
Example for a three man squad:
- two in back row and one in the first
- the one in the first row is of course the tank
- one in the back supports the others (with shield magic and/or healing)
- the other one in the back makes damage through a distant damage weapon or magic (or a skill)
Basically this is a more advanced use of the battle system of FF7. It forces the player to build different
strategies to get around with the enemies without being unfair.