Battle for Middle Earth 2
Custom Heroes River of Blood
This map puts you and up to 6 other players against the forces of evil. You have to defend the city of Lothlorien with your custom heroes, all there is between the enemy and Lothlorien is a bridge
where, and I quote from 300, "numbers count for nothing". It's advisable to have archers and mages that deal AoE damage to kill a load bunch of units, the archers will help kill the Fellbeasts towards the end.