Formation mod

[The_Mark]

Because everytime I try anything the AI tends to screw up badly.

I know. It's not capable of anything else than screwing up.

what about the roman infantry wedge

If you're referring to the case where a single unit would form a wedge, akin to the cav wedge, it can be done, but it's not in the scope of this mod. And giving legionnaires wedge ability would prevent them from using testudo.