How can I defeat Escharum in Halo Infinite?

Defeating Escharum in Halo Infinite requires a combination of agility, firepower, and tactical awareness. It's crucial to keep moving to avoid his attacks, using the grapple shot for added mobility. During the first phase, concentrate on draining his shield with sustained fire from power weapons, which you can often find around the arena. After depleting his shield, focus your gunfire on his head for maximum damage. In the second phase, when he becomes more aggressive, you'll need to dodge more frequently while continuing to target his head. Between these onslaughts, make use of the surrounding environment to replenish ammo and locate additional cover. By maintaining constant pressure and staying on the move, one can ultimately triumph over Escharum and progress through the game.