Uhm ok so I guess that's the big commit

- Added utoc/ucas (io store) loading support
- Added new unversioned asset parsing support ONLY for asset we have mappings yet
- Integrated that new parsing as good as possible into fmodel's old structure (which certainly wasn't prepared for such a change lol)
- ONLY for new package format disabled caching of files in debug mode (was annoying)
- Type and enum mappings while by default be loaded from a github repo BUT in debug mode it will first attempt to load them from local files (relative to the exe, also for debugging conveniance) but fallback to the ones from the repo
- F12 hotkey for reloading current type mappings (Mainly made for debug but also works in release)

FModel/MainWindow.xaml.cs

@@ -23,14 +23,19 @@ using FModel.Windows.Search;
 using FModel.Windows.Settings;
 using FModel.Windows.SoundPlayer;
 using System;
+using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using PropertyInfo = FModel.PakReader.IO.PropertyInfo;
 
 namespace FModel
 {
@@ -72,6 +77,8 @@ namespace FModel
             if (!Properties.Settings.Default.SkipVersion) Updater.CheckForUpdate();
             DebugHelper.WriteUserSettings();
             Folders.CheckWatermarks();
+            
+            LoadMappings();
 
             await Task.WhenAll(Init()).ContinueWith(t =>
                 {
@@ -97,6 +104,52 @@ namespace FModel
             await Folders.DownloadAndExtractVgm().ConfigureAwait(false);
         }
 
+        private async void LoadMappings()
+        {
+            try
+            {
+#if DEBUG
+                string rawMappings = null;
+                string rawEnumMappings = null;
+                try
+                {
+                    rawMappings = await File.ReadAllTextAsync("TypeMappings.json");
+                    rawEnumMappings = await File.ReadAllTextAsync("EnumMappings.json");
+                }
+                catch
+                {
+                    rawMappings ??= await Endpoints.GetStringEndpoint(Endpoints.FORTNITE_TYPE_MAPPINGS);
+                    rawEnumMappings ??=  await Endpoints.GetStringEndpoint(Endpoints.FORTNITE_ENUM_MAPPINGS);
+                }
+#else
+                var rawMappings =  await Endpoints.GetStringEndpoint(Endpoints.FORTNITE_TYPE_MAPPINGS);
+                var rawEnumMappings =  await Endpoints.GetStringEndpoint(Endpoints.FORTNITE_ENUM_MAPPINGS);
+#endif
+                var serializerSettings = new JsonSerializerSettings
+                {
+                    ContractResolver = new DefaultContractResolver
+                        {NamingStrategy = new CamelCaseNamingStrategy(false, false)}
+                };
+                Globals.TypeMappings =
+                    JsonConvert.DeserializeObject<Dictionary<string, Dictionary<int, PropertyInfo>>>(rawMappings,
+                        serializerSettings);
+                Globals.EnumMappings = JsonConvert.DeserializeObject<Dictionary<string, Dictionary<int, string>>>(rawEnumMappings,
+                    serializerSettings);
+
+            }
+            catch (Exception exception)
+            {
+                DebugHelper.WriteException(exception, "Failed to load Mappings");
+                Globals.TypeMappings ??= new Dictionary<string, Dictionary<int, PropertyInfo>>();
+                Globals.EnumMappings ??= new Dictionary<string, Dictionary<int, string>>();
+            }
+        }
+
+        public void ReloadMappings(object sender, RoutedEventArgs e)
+        {
+            LoadMappings();
+        }
+
         private void AeConfiguration()
         {
             AvalonEditFindReplaceHelper Frm = new AvalonEditFindReplaceHelper
@@ -206,7 +259,7 @@ namespace FModel
                 FModel_AssetsList.SelectedItem is ListBoxViewModel selectedItem)
             {
                 bool autoExport = FModel_AssetsList.SelectedItems.Count > 1;
-                if (!autoExport) Assets.Export(selectedItem.PakEntry, false); // manual export if one
+                if (!autoExport) Assets.Export(selectedItem.ReaderEntry, false); // manual export if one
                 else
                 {
                     bool ret = Properties.Settings.Default.AutoExport;
@@ -375,7 +428,7 @@ namespace FModel
             {
                 FModel_TabCtrl.SelectedIndex = 1;
                 ExtractStopVm.extractViewModel.IsEnabled = true;
-                AssetPropertiesVm.assetPropertiesViewModel.Set(selectedItem.PakEntry);
+                AssetPropertiesVm.assetPropertiesViewModel.Set(selectedItem.ReaderEntry);
             }
             else
             {