Thanks Bergasa. :)
Yeah I setup the enemies in different mobs when it is significant. But I would not for like a mix of goblins with swords and spears since the game do not differentiate weapons. But for the bows yeah I could make them their own mob.
As for the mobs targeting, since Tunnel Goons is players facing, monsters don't trigger attack themselves, they inflict damage when characters misses, so you simply describe the melee. :)