This one in particular is problematic to fix.. it would require to reduce flanking penalties to minimum... but it would cause AI to prefer rushing all units into single spot and overwhelming it even in open field battles, which is much bigger problem.. I rather have field battles where enemy is engaging entire line, than all AI units blobbing together.. Anyway, with next update i plan for tomorrow, i will try to tone some penalties down a bit or at least increase inspire bonus, so with general nearby these units will be able to overcome these penalties until they take some casualties..