Spawn tiers are location tags used by the loot economy. They describe where configured items may spawn, rather than how an item ranks against other equipment.
Each map has its own tier layout. The tables below list the tags found in the MyDayZ economy exports. They do not describe exact map boundaries or guarantee a spawn.
Chernarus
Chernarus spawn-tier tags
Spawn tag
Configured classnames
Tier1
205
Tier2
337
Tier3
312
Tier4
213
Unique
8
Deer Isle
Deer Isle spawn-tier tags
Spawn tag
Configured classnames
Tier1
258
Tier2
410
Tier3
494
Tier4
451
Tier5
376
Tier6
194
Tier7
167
Tier8
134
Tier9
153
Livonia
Livonia spawn-tier tags
Spawn tag
Configured classnames
Tier1
136
Tier2
229
Tier3
180
Unique
8
Namalsk
Namalsk spawn-tier tags
Spawn tag
Configured classnames
Tier1
53
Tier2
97
Tier3
120
Tier4
115
Tier5
29
Tier6
11
Tier7
21
Nasdara
Nasdara spawn-tier tags
Spawn tag
Configured classnames
Tier1
225
Tier2
378
Tier3
293
Unique
38
Sakhal
Sakhal spawn-tier tags
Spawn tag
Configured classnames
Tier1
356
Tier2
532
Tier3
353
Tier4
65
Unique
9
A classname can occur in several tiers. These counts include configured economy entries, and are not quantities of items on the server. An item without a tier tag is not automatically Tier 1. Check the map-specific Loot economy section on its item page.