[Ghill]

I learned a lesson about barbarians a long time ago, "never estimate barbarians".

They have mediocre Morale and stats, but they have really good weapons and with berserk they can be deadly to even heavily armored targets. 30 berserking barbarians can kill 40 heavy infantry in a round or two, but they can be routed by a pair of vine arrows. If you rely on them they will fail, and if you don't take care they can easily kill you.

The clean solution to independent barbarians is to blast them from afar, a couple dozen archers or a few castings of fire flies will generally kill enough to ensure victory in melee and almost always cause them to break anyway.