A few discoveries that I have made:
0x0C of formation data determines whether an enemy can be targeted in battle, as well as a few other things. When this is set to E7, the enemy is untargetable but visible, and does not have to be killed for the battle to end (example: the helicopter in the Rufus battle). When it is E6 the enemy is again untargetable and still doesn't have to be killed for the battle to end, and it is also invisible (example: the lorry in the Palmer battle). I've tried this with MPs and Guard Hounds and got the results I expected.
0x04 (possibly 0x04-05) of
battle setup 1 has something to do with how long it takes to escape from battles; the higher the number the better. It might be the amount of turns the player has to spend trying to escape, but I haven't confirmed anything.
0x010 (possibly 0x010-0x011) determine whether the battle is escapable. Formations with FD at this offset can be escaped, whereas formations with other values here (F9 and E9 seem to be the most common) are unescapable.
I actually found the last two a while ago, but I don't think I advertised them very well. My apologies if any of this is old news.
