I have recorded 68 tests in 3 different battle types in Attila. The weakness of the mod is that choosing defensive with a melee and cav army vs a town or a high-missile percent army will lead to massive losses. With this mod, the results are 90% better for defensive. Defensive is better honestly when you're in a place the benefits defense and have the ranged troops. Cities, bridges, forts. This mod makes it unnecessary to fight most of those battles. Until I create a mod that supports both offense and defense, I would fight your battles against armies with defensive advantage.
Furthermore, the mod is unique in that the changes only benefit the human player so don't worry about overpowered ai towns.

this shit doesnt work the only thing it does work is that garrisoned troops (city or villiage) seem to have a slightly higher advantage which is great. However out of around 18 or so tests only 2 defensive clicks were victorious which is insane especially when some of my stacks were greater than the enemies stacks lol. Not sure how to proceed but I'll continue trying it for a few days.

That isn't my specialty yet. When you find a mod that does this, let me know.

Can you put a limit on the occupation of regions for factions? It could be 10. I would like a different gameplay.

Well when I first installed it the game crashed on startup so I disabled it went into the game started a new game saved it then went back and enabled your mob, this time the game started ok. So no idea what the exact problem was, some people have said the launcher is a bit temperamental so who knows, but anyway its working and thanks for trying it out again...

I just tested this again for you on a different campaign. It does not crash.

Crashing on startup for me, its top of the list too...