House of Reckoning

Upon entering the House of Reckoning, you will unlock the Reckoning achievement. Before the fighting begins, locate and pick up the UNSC audio log in the first room.

Survive the Basic Training simulation, which features waves of Brutes, Jackals, and Grunts. Utilize the abundant weapons and grenades, including a M247 HMG, to defeat the enemies.

Proceed to the next room and use AI Scan if needed to find the way forward.

Survive the Advanced Training simulation. Enemies here are stronger, including more advanced Elites and Hunters. Use high ground and cover to your advantage. Listen for the heavy breathing of melee-focused Elites to anticipate their attacks. Powerful weapons like the Ravager, Sentinel Beam, Cindershot, Heatwave, M41 SPNKR, or CQS48 Bulldog are effective. Blast Coils can also inflict significant damage.

After defeating the initial Elite Brutes, two powerful Hunters will appear. Use cover and high ground, and employ power weapons and grenades to defeat them.

After Advanced Training, find the first Banished audio log in the room before the boss fight.

Interact with the device displaying Echo 216's family recording to initiate the boss fight with Jega 'Rdomnai.

During the fight with Jega, use the Threat Sensor to track him when he goes into stealth. Jega wields powerful melee weapons, including a modified Energy Sword, and can kill you quickly if you are hit multiple times. Create distance by sprinting or using the Grappleshot if you are hit.

Focus on depleting Jega's energy shield with power weapons. His shield regenerates if not attacked consistently. Once the shield is down, his health is easier to deplete.