Brigand: Battles is a small DLC that uses some old modified maps and makes the player fight major battles. You can select one of three maps at the beginning to challenge you with extremely difficult and action-packed combat.
After the events of Oaxaca, there are still lingering threats, and you can choose from the start which one to deal with. The BATTLES DLC currently contains 4 challenge maps, each of which unlocks an achievement. There is also a 100% original soundtrack thanks to Sonic Kitchen and Daniel Estay.
Challenge Maps:
Battle #1: Battle of Loma Larga Battle #2: The Creeper's Hunt Battle #3: Siege of Junkfort Battle #4: Fire in the Water Hole
