Changes into

When its hit points run out it becomes Military Chest (Open).

Drops when destroyed

When it collapses

Falling, it leaves Wood Debris (Terrain) (75% of the time) where it lands.

Loot

Holds the Military Chest loot container: 6 × 2 slots, 76 possible items.

Chance of at least one per open at loot stage 50. Every item and stage.

Where to find (22 POIs)

Haven Hotel (tier 5), Navezgane Athletics Complex (tier 5), Aranea Caverns (tier 4), Camp Hollow Point (tier 4), Downtown Marketplace (tier 4), Installation Blue Ridge (tier 4), Joe's Junction (tier 4), NDC Checkpoint Four (tier 4), The Zavislak Residence (tier 4), Carl's Cars (tier 3), Fort Razor (tier 3), Forward Supply Depot (tier 3), Towersley Estate (tier 3), Camp Deucenhalf (tier 1), Best Pals Shelter, Cascade Tower, Cell Tower #1, Demolition Site, Federal Plaza, Hybrid Energy Substation #4, The Tan Residence, Trader Joel.

Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.