Hmm, very well put together. The descriptions are simple and concise and adding the relevant classes is also a good touch.

A question though. I believe it was asked previously but what about certain units that could take on other roles? For example, an Armor Breaker you mentioned has Enchanters and Alchemists fitting that role, yet we have Odette who on SAW can lower the enemies' magick resistance by 50%. However, she would normally be in the AoE Rear group. Is there any way to handle this kind of discrepancy?