diff --git a/Libraries/SPTarkov.Server.Assets/Assets/configs/seasonalevents.json b/Libraries/SPTarkov.Server.Assets/Assets/configs/seasonalevents.json
index 82200025..2d0e240d 100644
--- a/Libraries/SPTarkov.Server.Assets/Assets/configs/seasonalevents.json
+++ b/Libraries/SPTarkov.Server.Assets/Assets/configs/seasonalevents.json
@@ -9688,9 +9688,17 @@
           "disableWaves": [],
           "enabled": true,
           "mapInfectionAmount": {
-            "Sandbox": 0,
-            "factory4": 0,
-            "laboratory": 100
+            "Sandbox": 5,
+            "factory4": 5,
+            "laboratory": 100,
+			"Woods": 5,
+			"bigmap": 5,
+			"Shoreline": 5,
+			"Interchange": 5,
+			"RezervBase": 5,
+			"laboratory": 5,
+			"Lighthouse": 5,
+			"TarkovStreets": 5
           }
         }
       },
diff --git a/Libraries/SPTarkov.Server.Core/Services/DatabaseService.cs b/Libraries/SPTarkov.Server.Core/Services/DatabaseService.cs
index 12d073c7..02e2b704 100644
--- a/Libraries/SPTarkov.Server.Core/Services/DatabaseService.cs
+++ b/Libraries/SPTarkov.Server.Core/Services/DatabaseService.cs
@@ -98,7 +98,7 @@ public class DatabaseService(
     }
 
     /// <summary>
-    ///     Get specific location by its ID
+    ///     Get specific location by its ID, automatically ToLowers id
     /// </summary>
     /// <param name="locationId"> Desired location ID </param>
     /// <returns> assets/database/locations/ </returns>
diff --git a/Libraries/SPTarkov.Server.Core/Services/SeasonalEventService.cs b/Libraries/SPTarkov.Server.Core/Services/SeasonalEventService.cs
index d4e80b44..aff1587e 100644
--- a/Libraries/SPTarkov.Server.Core/Services/SeasonalEventService.cs
+++ b/Libraries/SPTarkov.Server.Core/Services/SeasonalEventService.cs
@@ -749,21 +749,20 @@ public class SeasonalEventService(
         infectionHalloween.Enabled = true;
 
         var globalInfectionDict = globals.LocationInfection.GetAllPropsAsDict();
-        foreach (var infectedLocationKvP in zombieSettings.MapInfectionAmount)
+        foreach (var (locationId, infectionPercentage) in zombieSettings.MapInfectionAmount)
         {
-            var mappedLocations = GetLocationFromInfectedLocation(infectedLocationKvP.Key);
-
+            // Infection rates sometimes apply to multiple maps, e.g. Factory day/night or Sandbox/sandbox_high
+            // Get the list of maps that should have infection value applied to their base
+            // 90% of locations are just 1 map e.g. bigmap = customs
+            var mappedLocations = GetLocationFromInfectedLocation(locationId);
             foreach (var locationKey in mappedLocations)
             {
-                _databaseService.GetLocation(
-                            locationKey.ToLower()
-                        )
-                        .Base.Events.Halloween2024.InfectionPercentage =
-                    zombieSettings.MapInfectionAmount[infectedLocationKvP.Key];
+                _databaseService.GetLocation(locationKey)
+                    .Base.Events.Halloween2024.InfectionPercentage = infectionPercentage;
             }
 
-            globalInfectionDict[infectedLocationKvP.Key] =
-                zombieSettings.MapInfectionAmount[infectedLocationKvP.Key];
+            // Globals data needs value updated too
+            globalInfectionDict[locationId] = infectionPercentage;
         }
 
         foreach (var locationId in zombieSettings.DisableBosses)
@@ -856,12 +855,10 @@ public class SeasonalEventService(
         }
 
         var locations = _databaseService.GetLocations().GetAllPropsAsDict();
-        foreach (var (locationKey, _) in botsToAddPerMap)
+        foreach (var (locationKey, bossesToAdd) in botsToAddPerMap)
         {
-            if (!botsToAddPerMap.TryGetValue(locationKey, out var bossesToAdd))
+            if (bossesToAdd.Count == 0)
             {
-                _logger.Warning($"Unable to add: {eventType} bosses to: {locationKey}");
-
                 continue;
             }
 
@@ -871,13 +868,14 @@ public class SeasonalEventService(
             }
 
             var locationName = _databaseService.GetLocations().GetMappedKey(locationKey);
+            var mapBosses = ((Location) locations[locationName]).Base.BossLocationSpawn;
             foreach (var boss in bossesToAdd)
             {
-                var mapBosses = ((Location) locations[locationName]).Base.BossLocationSpawn;
-                // If no bosses match by name
+                
                 if (mapBosses.All(bossSpawn => bossSpawn.BossName != boss.BossName))
                 {
-                    ((Location) locations[locationName]).Base.BossLocationSpawn.AddRange(bossesToAdd);
+                    // Zombie doesn't exist in maps boss list yet, add
+                    mapBosses.Add(boss);
                 }
             }
         }