diff --git a/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/LongChecker.java b/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/LongChecker.java
new file mode 100644
index 0000000..6ebf317
--- /dev/null
+++ b/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/LongChecker.java
@@ -0,0 +1,40 @@
+package gearth.misc.packetrepresentation.prediction.checkers;
+
+import gearth.protocol.HPacket;
+
+public class LongChecker extends TypeChecker<Long> {
+
+    private IntegerChecker integerChecker;
+
+    protected LongChecker(HPacket hPacket) {
+        super("l", hPacket);
+        integerChecker = new IntegerChecker(hPacket);
+    }
+
+    @Override
+    public boolean canRead(int index) {
+        return index >= 6 && !(index + 8 > hPacket.getBytesLength());
+    }
+
+    @Override
+    public double score(int index) {
+        int split1 = hPacket.readInteger(index);
+        int split2 = hPacket.readInteger(index + 4);
+
+        if (split2 > 256 * 256 * 3 && split1 == 0) {
+            return integerChecker.score(index);
+        }
+
+        return 0;
+    }
+
+    @Override
+    Long get(int index) {
+        return hPacket.readLong(index);
+    }
+
+    @Override
+    int nextIndexSafe(int index) {
+        return index + 8;
+    }
+}
diff --git a/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/TypeCheckerProducer.java b/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/TypeCheckerProducer.java
index 675699c..f7d7959 100644
--- a/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/TypeCheckerProducer.java
+++ b/G-Earth/src/main/java/gearth/misc/packetrepresentation/prediction/checkers/TypeCheckerProducer.java
@@ -2,18 +2,26 @@ package gearth.misc.packetrepresentation.prediction.checkers;
 
 import gearth.protocol.HPacket;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
 public class TypeCheckerProducer {
 
+    public static volatile boolean USE_LONG_DATATYPE = false;
+
     public static List<TypeChecker> getValidators(HPacket packet) {
-        return Arrays.asList(
+        List<TypeChecker> typeCheckers = new ArrayList<>(Arrays.asList(
                 new BooleanChecker(packet),
                 new ByteChecker(packet),
                 new IntegerChecker(packet),
-                new StringChecker(packet)
-        );
+                new StringChecker(packet)));
+
+        if (USE_LONG_DATATYPE) {
+            typeCheckers.add(new LongChecker(packet));
+        }
+
+        return typeCheckers;
     }
 
 }
diff --git a/G-Earth/src/main/java/gearth/ui/extra/ExtraController.java b/G-Earth/src/main/java/gearth/ui/extra/ExtraController.java
index d7212eb..1a98ee4 100644
--- a/G-Earth/src/main/java/gearth/ui/extra/ExtraController.java
+++ b/G-Earth/src/main/java/gearth/ui/extra/ExtraController.java
@@ -2,6 +2,8 @@ package gearth.ui.extra;
 
 import gearth.Main;
 import gearth.misc.Cacher;
+import gearth.misc.packetrepresentation.prediction.StructurePredictor;
+import gearth.misc.packetrepresentation.prediction.checkers.TypeCheckerProducer;
 import gearth.protocol.HConnection;
 import gearth.protocol.connection.HState;
 import gearth.protocol.connection.proxy.ProxyProviderFactory;
@@ -62,7 +64,11 @@ public class ExtraController extends SubForm implements SocksConfiguration {
     public RadioButton rd_flash;
 
     public void initialize() {
-        tgl_clientMode.selectedToggleProperty().addListener(observable -> parentController.connectionController.changeClientMode());
+        TypeCheckerProducer.USE_LONG_DATATYPE = rd_unity.isSelected();
+        tgl_clientMode.selectedToggleProperty().addListener(observable -> {
+            parentController.connectionController.changeClientMode();
+            TypeCheckerProducer.USE_LONG_DATATYPE = rd_unity.isSelected();
+        });
 
         url_troubleshooting.setTooltip(new Tooltip("https://github.com/sirjonasxx/G-Earth/wiki/Troubleshooting"));
         InfoController.activateHyperlink(url_troubleshooting);