Project Zomboid B42 Knox Military Apartments: Map9 Stash and Coords

Build 42.19 · March Ridge · Annotated Map 9 survivor building · Not a guaranteed gun vault

Target building X 10092 · Y 12619

Stash map Map 9 (apartments)

Map item March Ridge map

Loot style Big survivor cache

Extra zombies +5 when Map 9 is active

Barricades Often boarded (Map 9)

What players mean by Knox Military Apartments

• It is the large military-looking apartment block in March Ridge, not a separate named map region.
• Vanilla data pins the special survivor-building stash to world tile 10092, 12619 on Map 9.
• Map 9 map notes (EN): “survivors welcome to join us - always”, “need food and guns and stuff”, “kill some on the way in for kudos!”
• Without the annotated map applied, the same building is a normal multi-floor residential clear—many containers, civilian-scale rolls, not a military armory.

Coordinates and how to open them

Quick-start (worth the trip?)

1. Decide the win condition. Guns-as-primary only makes sense if you already hold or are hunting a Map 9 annotated March Ridge map. Otherwise treat the trip as a base/clear or skip it for dedicated gun POIs.
2. Find a March Ridge map. Town maps drop from common cartography pools (glove boxes, bags, counters, zombies). Opening a looted map may roll notes based on sandbox Annotated Map Chance.
3. Confirm Map 9. You want the notes pointing at the big building near 10092, 12619, not Map 1–8 gun/tool houses or Map 10 medical floorboards.
4. Do not explore that building first. The special stash only applies if the building has not already been visited. Scout the street if you must, but leave the target interiors unexplored until the annotated map is live.
5. Clear stairs, then floors. Own the stairwell before looting. Expect extra zombies when Map 9 is active (about five more) and possible barricades.
6. Loot with the right table in mind. Map 9 rewrites rooms to a big survivor-cache style (food-heavy counters plus survivor crates)—not an infinite armory.

How the annotated-map stash works

In vanilla Build 42.19, March Ridge annotated maps work like this:

1. When you loot a March Ridge map, the game may promote it to an annotated map using sandbox Annotated Map Chance.
2. If the roll succeeds, one remaining March Ridge stash definition is chosen (Map 1–Map 10, minus already-used names) and notes are written onto that map item.
3. When the target building loads and the stash is still pending, the game applies the special loot style, optional barricades, traps, extra zombies, and special containers.
4. If anyone has already entered that building, the special first-spawn setup does not apply—the interior was already rolled as a normal building.

Annotated Map Chance (sandbox)

In-game tooltip: “How often a looted map will have notes on it, written by a deceased survivor.” Extinction uses a lower default (Extremely Rare). Servers set to Never will never create Map 9 naturally.

March Ridge stash maps (Build 42.19)

All use a looted March Ridge map that can roll notes. Highlighted row is the apartments block.

Zombie-map only means that stash is only eligible when the map item comes from a zombie corpse. Map 9 does not use that restriction, so container and vehicle map finds can roll it. Map 9 also does not place an extra named duffel—loot rides on the building room rewrite.

Big survivor cache vs normal rooms

When Map 9 applies, room loot switches to a big survivor-cache style:

Compare with smaller house stash Map 7 (standard survivor cache): counters still lean kitchen/weapons, but Map 9 is the “big building” variant where several counter pools can roll empty. Empty counters can still appear even on a successful stash spawn—that is table design, not proof the system failed.

Empty rooms diagnostic

Clearing pattern

1. Control outside doors first so retreat paths are known before hallway fights.
2. Stairwell is the choke. Clear and hold stairs before branching into apartments.
3. One side of the hall at a time so retreat always goes through cleared space.
4. Loot after the floor is quiet. Opening every wardrobe mid-fight is how multi-floor buildings snowball.
5. Pack capacity. If Map 9 hit, food/water bulk fills bags faster than expected.

Minimum loadout

If loot is mediocre, still extract value

• Top-floor sleep, lower-floor storage reduces surprise bedroom spawns where you rest.
• Multiple exits (sheet ropes on more than one face) so one street horde does not soft-lock you.
• Noise discipline—a celebration gunshot from an upper window can still pull the block.
• A cleared multi-floor shell is a legitimate win even when Map 9 never rolled.

Is the trip worth it?

Server checklist

• Exact Build 42.19 (or server) revision matches for every client.
• Sandbox Annotated Map Chance is not Never.
• Note who first entered building 10092, 12619.
• Mods that rewrite loot or maps are out of scope for this vanilla page—test on a clean sandbox if diagnosing emptiness.
• Reproduce on a throwaway save with the same sandbox before calling it a build-wide bug.