diff --git a/Core/Zone/400-Radius-Zone/ZON-400-Radius-Zone.lua b/Core/Zone/400-Radius-Zone/ZON-400-Radius-Zone.lua
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+++ b/Core/Zone/400-Radius-Zone/ZON-400-Radius-Zone.lua
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+---
+-- Author: FlightControl
+-- Created: 21.02.2017
+-- Contributors: kaltokri
+-- Modified: 23.02.2024
+--
+-- # Documentation:
+-- https://flightcontrol-master.github.io/MOOSE_DOCS_DEVELOP/Documentation/Core.Zone.html
+--
+-- # Description:
+-- 
+-- A ZONE_RADIUS has been defined. It's boundaries are marked with white smoke.
+-- Center of the zone is placed on the postion of a bunker.
+-- A vehicle is driving through the zone perimeters.
+-- When the vehicle is driving inside of the zone, a red smoke is placed on the vehicle location.
+-- 
+-- # Test cases:
+-- 
+-- 1. Watch the APC driving trough the zone, a red smoke will be deployed.
+
+-- Get object for APC.
+GroupApc = GROUP:FindByName( "APC" )
+
+-- Get object of the bunker.
+Bunker = STATIC:FindByName( "Bunker" )
+
+-- Get a zone around the bunker object and mark it with smoke.
+ZoneA = ZONE_RADIUS:New( "Zone A", Bunker:GetVec2(), 300 )
+ZoneA:SmokeZone( SMOKECOLOR.White, 90 )
+
+-- Start a scheduler to test every second if the APC is inside of the zone.
+-- Post a message with the result and deploy smoke if APC is within the zone.
+Messager = SCHEDULER:New( nil,
+  function()
+    GroupApc:MessageToAll( ( GroupApc:IsCompletelyInZone( ZoneA ) ) and "Inside Zone A" or "Outside Zone A", 1 )
+    if GroupApc:IsCompletelyInZone( ZoneA ) then
+      GroupApc:GetUnit(1):SmokeRed()
+    end
+  end, 
+  {}, 0, 1
+)
diff --git a/Core/Zone/400-Radius-Zone/ZON-400-Radius-Zone.miz b/Core/Zone/400-Radius-Zone/ZON-400-Radius-Zone.miz
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