diff --git a/Libraries/SPTarkov.Server.Core/Controllers/BuildController.cs b/Libraries/SPTarkov.Server.Core/Controllers/BuildController.cs
index 0f3e6525..1004faca 100644
--- a/Libraries/SPTarkov.Server.Core/Controllers/BuildController.cs
+++ b/Libraries/SPTarkov.Server.Core/Controllers/BuildController.cs
@@ -176,10 +176,7 @@ public class BuildController(
     /// <param name="request"></param>
     public void RemoveBuild(MongoId sessionId, RemoveBuildRequestData request)
     {
-        if (request.Id is not null)
-        {
-            RemovePlayerBuild(request.Id, sessionId);
-        }
+        RemovePlayerBuild(request.Id, sessionId);
     }
 
     /// <summary>
@@ -222,7 +219,7 @@ public class BuildController(
     /// </summary>
     /// <param name="idToRemove"></param>
     /// <param name="sessionID">Session/Player id</param>
-    protected void RemovePlayerBuild(string idToRemove, MongoId sessionID)
+    protected void RemovePlayerBuild(MongoId idToRemove, MongoId sessionID)
     {
         var profile = saveServer.GetProfile(sessionID);
         var weaponBuilds = profile.UserBuildData.WeaponBuilds;
diff --git a/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs b/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs
index 5f55086c..842b2d5f 100644
--- a/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs
+++ b/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs
@@ -542,7 +542,7 @@ public class InventoryController(
         ItemEventRouterResponse output
     )
     {
-        string? itemId = null;
+        MongoId? itemId = null;
         if (request.FromOwner is not null)
         {
             try
@@ -582,7 +582,7 @@ public class InventoryController(
         if (itemId is not null)
         {
             var fullProfile = profileHelper.GetFullProfile(sessionId);
-            FlagItemsAsInspectedAndRewardXp([itemId], fullProfile);
+            FlagItemsAsInspectedAndRewardXp([itemId.Value], fullProfile);
         }
     }
 
diff --git a/Libraries/SPTarkov.Server.Core/Helpers/PresetHelper.cs b/Libraries/SPTarkov.Server.Core/Helpers/PresetHelper.cs
index 3bb39511..1882586b 100644
--- a/Libraries/SPTarkov.Server.Core/Helpers/PresetHelper.cs
+++ b/Libraries/SPTarkov.Server.Core/Helpers/PresetHelper.cs
@@ -11,8 +11,8 @@ namespace SPTarkov.Server.Core.Helpers;
 [Injectable(InjectionType.Singleton)]
 public class PresetHelper(DatabaseService databaseService, ItemHelper itemHelper, ICloner cloner)
 {
-    protected Dictionary<string, Preset>? _defaultEquipmentPresets;
-    protected Dictionary<string, Preset>? _defaultWeaponPresets;
+    protected Dictionary<MongoId, Preset>? _defaultEquipmentPresets;
+    protected Dictionary<MongoId, Preset>? _defaultWeaponPresets;
 
     /// <summary>
     ///     Preset cache - key = item tpl, value = preset ids
@@ -28,7 +28,7 @@ public class PresetHelper(DatabaseService databaseService, ItemHelper itemHelper
     /// Get weapon and armor default presets, keyed to preset id NOT item tpl
     /// </summary>
     /// <returns></returns>
-    public Dictionary<string, Preset> GetDefaultPresets()
+    public Dictionary<MongoId, Preset> GetDefaultPresets()
     {
         var weapons = GetDefaultWeaponPresets();
         var equipment = GetDefaultEquipmentPresets();
@@ -58,7 +58,7 @@ public class PresetHelper(DatabaseService databaseService, ItemHelper itemHelper
     /// Get default weapon presets
     /// </summary>
     /// <returns></returns>
-    public Dictionary<string, Preset> GetDefaultWeaponPresets()
+    public Dictionary<MongoId, Preset> GetDefaultWeaponPresets()
     {
         if (_defaultWeaponPresets is null)
         {
@@ -78,7 +78,7 @@ public class PresetHelper(DatabaseService databaseService, ItemHelper itemHelper
     /// Get default equipment presets
     /// </summary>
     /// <returns>Dictionary</returns>
-    public Dictionary<string, Preset> GetDefaultEquipmentPresets()
+    public Dictionary<MongoId, Preset> GetDefaultEquipmentPresets()
     {
         if (_defaultEquipmentPresets == null)
         {
diff --git a/Libraries/SPTarkov.Server.Core/Helpers/RagfairSellHelper.cs b/Libraries/SPTarkov.Server.Core/Helpers/RagfairSellHelper.cs
index 7be81df3..6479a4e5 100644
--- a/Libraries/SPTarkov.Server.Core/Helpers/RagfairSellHelper.cs
+++ b/Libraries/SPTarkov.Server.Core/Helpers/RagfairSellHelper.cs
@@ -79,8 +79,7 @@ public class RagfairSellHelper(
         var endTime =
             startTimestamp
             + timeUtil.GetHoursAsSeconds(
-                (int)
-                    databaseService.GetGlobals().Configuration.RagFair.OfferDurationTimeInHour.Value
+                (int)databaseService.GetGlobals().Configuration.RagFair.OfferDurationTimeInHour
             );
 
         var sellTimestamp = startTimestamp;
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Builds/SetMagazineRequest.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Builds/SetMagazineRequest.cs
index b337bbbb..d5469b25 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Builds/SetMagazineRequest.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Builds/SetMagazineRequest.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using SPTarkov.Server.Core.Models.Common;
 using SPTarkov.Server.Core.Models.Eft.Profile;
 using SPTarkov.Server.Core.Models.Utils;
 
@@ -10,7 +11,7 @@ public record SetMagazineRequest : IRequestData
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("Id")]
-    public string? Id { get; set; }
+    public MongoId Id { get; set; }
 
     [JsonPropertyName("Name")]
     public string? Name { get; set; }
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Common/Globals.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Common/Globals.cs
index ab2617a5..0752f2bd 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Common/Globals.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Common/Globals.cs
@@ -12,19 +12,19 @@ public record Globals
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("config")]
-    public Config? Configuration { get; set; }
+    public Config Configuration { get; set; }
 
     [JsonPropertyName("LocationInfection")]
-    public LocationInfection? LocationInfection { get; set; }
+    public LocationInfection LocationInfection { get; set; }
 
     [JsonPropertyName("bot_presets")]
-    public List<BotPreset>? BotPresets { get; set; }
+    public List<BotPreset> BotPresets { get; set; }
 
     [JsonPropertyName("BotWeaponScatterings")]
-    public List<BotWeaponScattering>? BotWeaponScatterings { get; set; }
+    public List<BotWeaponScattering> BotWeaponScatterings { get; set; }
 
     [JsonPropertyName("ItemPresets")]
-    public Dictionary<string, Preset>? ItemPresets { get; set; }
+    public Dictionary<MongoId, Preset> ItemPresets { get; set; }
 }
 
 public record PlayerSettings
@@ -295,7 +295,7 @@ public record ArtilleryShellingAirDropSettings
     public XYZ? AirDropPosition { get; set; }
 
     [JsonPropertyName("LootTemplateId")]
-    public string? LootTemplateId { get; set; }
+    public MongoId? LootTemplateId { get; set; }
 }
 
 public record ProjectileExplosionParams
@@ -532,10 +532,10 @@ public record Config
     public Tournament? Tournament { get; set; }
 
     [JsonPropertyName("QuestSettings")]
-    public QuestSettings? QuestSettings { get; set; }
+    public QuestSettings QuestSettings { get; set; }
 
     [JsonPropertyName("RagFair")]
-    public RagFair? RagFair { get; set; }
+    public RagFair RagFair { get; set; }
 
     [JsonPropertyName("handbook")]
     public Handbook? Handbook { get; set; }
@@ -1525,14 +1525,11 @@ public record Mastering
     [JsonExtensionData]
     public Dictionary<string, object>? ExtensionData { get; set; }
 
-    [JsonPropertyName("Id")]
-    public string? Id { get; set; }
-
     [JsonPropertyName("Name")]
     public string? Name { get; set; }
 
     [JsonPropertyName("Templates")]
-    public List<string>? Templates { get; set; }
+    public List<MongoId>? Templates { get; set; }
 
     [JsonPropertyName("Progress")]
     public double? Progress { get; set; }
@@ -1591,7 +1588,7 @@ public record WildBody
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("body")]
-    public string? Body { get; set; }
+    public MongoId? Body { get; set; }
 
     [JsonPropertyName("hands")]
     public MongoId? Hands { get; set; }
@@ -2721,10 +2718,10 @@ public record RagFair
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("enabled")]
-    public bool? Enabled { get; set; }
+    public bool Enabled { get; set; }
 
     [JsonPropertyName("priceStabilizerEnabled")]
-    public bool? PriceStabilizerEnabled { get; set; }
+    public bool PriceStabilizerEnabled { get; set; }
 
     [JsonPropertyName("includePveTraderSales")]
     public bool? IncludePveTraderSales { get; set; }
@@ -2734,13 +2731,13 @@ public record RagFair
 
     // Checked in client
     [JsonPropertyName("minUserLevel")]
-    public int? MinUserLevel { get; set; }
+    public int MinUserLevel { get; set; }
 
     [JsonPropertyName("communityTax")]
     public float? CommunityTax { get; set; }
 
     [JsonPropertyName("communityItemTax")]
-    public float? CommunityItemTax { get; set; }
+    public float CommunityItemTax { get; set; }
 
     // Checked in client
     [JsonPropertyName("communityRequirementTax")]
@@ -2750,7 +2747,7 @@ public record RagFair
     public float? OfferPriorityCost { get; set; }
 
     [JsonPropertyName("offerDurationTimeInHour")]
-    public double? OfferDurationTimeInHour { get; set; }
+    public double OfferDurationTimeInHour { get; set; }
 
     [JsonPropertyName("offerDurationTimeInHourAfterRemove")]
     public double? OfferDurationTimeInHourAfterRemove { get; set; }
@@ -2789,16 +2786,16 @@ public record RagFair
     public long? RagfairTurnOnTimestamp { get; set; }
 
     [JsonPropertyName("ratingSumForIncrease")]
-    public double? RatingSumForIncrease { get; set; }
+    public double RatingSumForIncrease { get; set; }
 
     [JsonPropertyName("ratingIncreaseCount")]
-    public double? RatingIncreaseCount { get; set; }
+    public double RatingIncreaseCount { get; set; }
 
     [JsonPropertyName("ratingSumForDecrease")]
     public double? RatingSumForDecrease { get; set; }
 
     [JsonPropertyName("ratingDecreaseCount")]
-    public double? RatingDecreaseCount { get; set; }
+    public double RatingDecreaseCount { get; set; }
 
     [JsonPropertyName("maxSumForIncreaseRatingPerOneSale")]
     public double? MaxSumForIncreaseRatingPerOneSale { get; set; }
@@ -2825,7 +2822,7 @@ public record RagFair
     public double? YouSellOfferMaxStorageTimeInHour { get; set; }
 
     [JsonPropertyName("yourOfferDidNotSellMaxStorageTimeInHour")]
-    public double? YourOfferDidNotSellMaxStorageTimeInHour { get; set; }
+    public double YourOfferDidNotSellMaxStorageTimeInHour { get; set; }
 
     [JsonPropertyName("isOnlyFoundInRaidAllowed")]
     public bool? IsOnlyFoundInRaidAllowed { get; set; }
@@ -2846,7 +2843,7 @@ public record ItemGlobalRestrictions
     public double? MaxFleaStacked { get; set; }
 
     [JsonPropertyName("TemplateId")]
-    public string? TemplateId { get; set; }
+    public MongoId? TemplateId { get; set; }
 }
 
 public record MaxActiveOfferCount
@@ -3156,7 +3153,7 @@ public record RestrictionsInRaid
     public double? MaxInRaid { get; set; }
 
     [JsonPropertyName("TemplateId")]
-    public string? TemplateId { get; set; }
+    public MongoId? TemplateId { get; set; }
 }
 
 public record FavoriteItemsSettings
@@ -3412,6 +3409,9 @@ public record PathConfig
     [JsonPropertyName("active")]
     public bool? Active { get; set; }
 
+    /// <summary>
+    /// Not mongoId
+    /// </summary>
     [JsonPropertyName("id")]
     public string? Id { get; set; }
 
@@ -4996,7 +4996,7 @@ public record Preset
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("_id")]
-    public string? Id { get; set; }
+    public MongoId Id { get; set; }
 
     [JsonPropertyName("_type")]
     public string? Type { get; set; }
@@ -5008,7 +5008,7 @@ public record Preset
     public string? Name { get; set; }
 
     [JsonPropertyName("_parent")]
-    public string? Parent { get; set; }
+    public MongoId Parent { get; set; }
 
     [JsonPropertyName("_items")]
     public List<Item>? Items { get; set; }
@@ -5026,8 +5026,8 @@ public record QuestSettings
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("GlobalRewardRepModifierDailyQuestPvE")]
-    public double? GlobalRewardRepModifierDailyQuestPvE { get; set; }
+    public double GlobalRewardRepModifierDailyQuestPvE { get; set; }
 
     [JsonPropertyName("GlobalRewardRepModifierQuestPvE")]
-    public double? GlobalRewardRepModifierQuestPvE { get; set; }
+    public double GlobalRewardRepModifierQuestPvE { get; set; }
 }
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Common/LooseLoot.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Common/LooseLoot.cs
index 9ea74f12..6c0f6f9b 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Common/LooseLoot.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Common/LooseLoot.cs
@@ -37,6 +37,9 @@ public record SpawnpointTemplate
 
     private string? _root;
 
+    /// <summary>
+    /// Not a mongoId
+    /// </summary>
     [JsonPropertyName("Id")]
     public string? Id { get; set; }
 
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryReadEncyclopediaRequestData.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryReadEncyclopediaRequestData.cs
index 9543e7e7..8f5f38ac 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryReadEncyclopediaRequestData.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryReadEncyclopediaRequestData.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using SPTarkov.Server.Core.Models.Common;
 
 namespace SPTarkov.Server.Core.Models.Eft.Inventory;
 
@@ -8,5 +9,5 @@ public record InventoryReadEncyclopediaRequestData : InventoryBaseActionRequestD
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("ids")]
-    public List<string> Ids { get; set; }
+    public List<MongoId> Ids { get; set; }
 }
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryUnbindRequestData.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryUnbindRequestData.cs
deleted file mode 100644
index 2b938a46..00000000
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/InventoryUnbindRequestData.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-using System.Text.Json.Serialization;
-
-namespace SPTarkov.Server.Core.Models.Eft.Inventory;
-
-public record InventoryUnbindRequestData : InventoryBaseActionRequestData
-{
-    [JsonExtensionData]
-    public Dictionary<string, object>? ExtensionData { get; set; }
-
-    [JsonPropertyName("item")]
-    public string? Item { get; set; }
-
-    [JsonPropertyName("index")]
-    public int? Index { get; set; }
-}
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/PresetBuildActionRequestData.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/PresetBuildActionRequestData.cs
index 5a4eaa1c..5cd15e6f 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/PresetBuildActionRequestData.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/PresetBuildActionRequestData.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using SPTarkov.Server.Core.Models.Common;
 using SPTarkov.Server.Core.Models.Eft.Common.Tables;
 using SPTarkov.Server.Core.Models.Utils;
 
@@ -13,7 +14,7 @@ public record PresetBuildActionRequestData : IRequestData
     public string? Action { get; set; }
 
     [JsonPropertyName("Id")]
-    public string? Id { get; set; }
+    public MongoId Id { get; set; }
 
     /// <summary>
     ///     name of preset given by player
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/RemoveBuildRequestData.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/RemoveBuildRequestData.cs
index ba54d771..000346a5 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/RemoveBuildRequestData.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/PresetBuild/RemoveBuildRequestData.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using SPTarkov.Server.Core.Models.Common;
 using SPTarkov.Server.Core.Models.Utils;
 
 namespace SPTarkov.Server.Core.Models.Eft.PresetBuild;
@@ -9,5 +10,5 @@ public record RemoveBuildRequestData : IRequestData
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("id")]
-    public string? Id { get; set; }
+    public MongoId Id { get; set; }
 }
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs
index b55c5f27..f369e9fc 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs
@@ -144,7 +144,7 @@ public record UserBuild
     public Dictionary<string, object>? ExtensionData { get; set; }
 
     [JsonPropertyName("Id")]
-    public string? Id { get; set; }
+    public MongoId Id { get; set; }
 
     [JsonPropertyName("Name")]
     public string? Name { get; set; }
diff --git a/Libraries/SPTarkov.Server.Core/Models/Spt/Config/RagfairConfig.cs b/Libraries/SPTarkov.Server.Core/Models/Spt/Config/RagfairConfig.cs
index 64ba7e85..fcb2726e 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Spt/Config/RagfairConfig.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Spt/Config/RagfairConfig.cs
@@ -468,7 +468,7 @@ public record UnreasonableModPrices
     public bool Enabled { get; set; }
 
     /// <summary>
-    ///     Multipler to start adjusting item values from, e.g. a value of 10 means any value over 10x the handbook price gets adjusted
+    ///     Multiplier to start adjusting item values from, e.g. a value of 10 means any value over 10x the handbook price gets adjusted
     /// </summary>
     [JsonPropertyName("handbookPriceOverMultiplier")]
     public int HandbookPriceOverMultiplier { get; set; }