Destiny 2: Leviathan Raid - Castellum Clear
Rough Guide
1. Go to the standards (3 total, in front of doors to different areas), kill enemies until the standard is "real".
2. Pick up standard, take to center plate (for lack of a better word) where all 3 standards can be placed.
3. Place standards, defend against enemies. Eventually the door to the next area unlocks.
This is done between each encounter (Royal Pools, Pleasure Gardens, Gauntlet, Throne).
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