Win condition: Rout the enemy
This map is not too challenging, and can be seen as a part of the tutorial.
Your task is to eliminate an enemy force of near-identical, axe-wielding brigands. Press X to view enemy range, and send your strongest units (Alm, Gray, Lukas) to the front. If possible, finish off weakened enemies using weaker units to build their strength and rack up XP. None of the enemies you'll face deal devastating damage, and victory should only take a few turns.
Defeat all enemy units to clear the map.