diff --git a/GoldWars/GoldWars.xcodeproj/project.pbxproj b/GoldWars/GoldWars.xcodeproj/project.pbxproj
index adf2cf1..0d62603 100644
--- a/GoldWars/GoldWars.xcodeproj/project.pbxproj
+++ b/GoldWars/GoldWars.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 53;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -20,6 +20,8 @@
 		11036113244B3E30008610AF /* MenuScene.swift in Sources */ = {isa = PBXBuildFile; fileRef = 11036112244B3E30008610AF /* MenuScene.swift */; };
 		116060F7245C57D2004E5A36 /* EntityManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 116060F6245C57D2004E5A36 /* EntityManager.swift */; };
 		11738A3B24508F68004426F1 /* Unit.swift in Sources */ = {isa = PBXBuildFile; fileRef = 11738A3A24508F68004426F1 /* Unit.swift */; };
+		3EBD242C245D8044003CECE7 /* GameCenterHelper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3EBD242B245D8044003CECE7 /* GameCenterHelper.swift */; };
+		3EBD242E245D9332003CECE7 /* Team.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3EBD242D245D9332003CECE7 /* Team.swift */; };
 		9E11FF79245CD81100EED3BE /* Fire.sks in Resources */ = {isa = PBXBuildFile; fileRef = 9E11FF77245CD81100EED3BE /* Fire.sks */; };
 		9E78ACB6245C9A5300526FF7 /* GameKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9E78ACB5245C9A5300526FF7 /* GameKit.framework */; };
 		9E78ACB8245CB75B00526FF7 /* TeamComponent.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9E78ACB7245CB75B00526FF7 /* TeamComponent.swift */; };
@@ -73,6 +75,8 @@
 		11036112244B3E30008610AF /* MenuScene.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MenuScene.swift; sourceTree = "<group>"; };
 		116060F6245C57D2004E5A36 /* EntityManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EntityManager.swift; sourceTree = "<group>"; };
 		11738A3A24508F68004426F1 /* Unit.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Unit.swift; sourceTree = "<group>"; };
+		3EBD242B245D8044003CECE7 /* GameCenterHelper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GameCenterHelper.swift; sourceTree = "<group>"; };
+		3EBD242D245D9332003CECE7 /* Team.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Team.swift; sourceTree = "<group>"; };
 		9E11FF77245CD81100EED3BE /* Fire.sks */ = {isa = PBXFileReference; lastKnownFileType = file.sks; path = Fire.sks; sourceTree = "<group>"; };
 		9E78ACB5245C9A5300526FF7 /* GameKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = GameKit.framework; path = System/Library/Frameworks/GameKit.framework; sourceTree = SDKROOT; };
 		9E78ACB7245CB75B00526FF7 /* TeamComponent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TeamComponent.swift; sourceTree = "<group>"; };
@@ -151,6 +155,7 @@
 				110360DA244B101A008610AF /* GameViewController.swift */,
 				110360DF244B101B008610AF /* Assets.xcassets */,
 				110360E4244B101B008610AF /* Info.plist */,
+				3EBD242B245D8044003CECE7 /* GameCenterHelper.swift */,
 			);
 			path = GoldWars;
 			sourceTree = "<group>";
@@ -220,6 +225,7 @@
 			children = (
 				11738A3A24508F68004426F1 /* Unit.swift */,
 				9EC86BA5245C8AD000796EF3 /* ModalType.swift */,
+				3EBD242D245D9332003CECE7 /* Team.swift */,
 			);
 			path = Enums;
 			sourceTree = "<group>";
@@ -324,7 +330,7 @@
 				};
 			};
 			buildConfigurationList = 110360CA244B101A008610AF /* Build configuration list for PBXProject "GoldWars" */;
-			compatibilityVersion = "Xcode 9.3";
+			compatibilityVersion = "Xcode 11.4";
 			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
@@ -386,11 +392,13 @@
 				9EA3ABEB245C6DFA006BC61D /* BaseNode.swift in Sources */,
 				110360D9244B101A008610AF /* GameScene.swift in Sources */,
 				116060F7245C57D2004E5A36 /* EntityManager.swift in Sources */,
+				3EBD242E245D9332003CECE7 /* Team.swift in Sources */,
 				9E78ACBA245CBDAF00526FF7 /* HUD.swift in Sources */,
 				11738A3B24508F68004426F1 /* Unit.swift in Sources */,
 				11036113244B3E30008610AF /* MenuScene.swift in Sources */,
 				9EA3ABE9245C6DAA006BC61D /* DefaultBaseComponent.swift in Sources */,
 				9EA3ABED245C8143006BC61D /* ModalBackgroundComponent.swift in Sources */,
+				3EBD242C245D8044003CECE7 /* GameCenterHelper.swift in Sources */,
 				ABA03DA0244BD54F00A66916 /* Base.swift in Sources */,
 				110360DB244B101A008610AF /* GameViewController.swift in Sources */,
 				110360D3244B101A008610AF /* AppDelegate.swift in Sources */,
@@ -571,12 +579,14 @@
 				CODE_SIGN_ENTITLEMENTS = GoldWars/GoldWars.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = DDKFQG46BQ;
 				INFOPLIST_FILE = GoldWars/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = de.hft.stuttgart.ip2.goldwars;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -592,12 +602,14 @@
 				CODE_SIGN_ENTITLEMENTS = GoldWars/GoldWars.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = DDKFQG46BQ;
 				INFOPLIST_FILE = GoldWars/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = de.hft.stuttgart.ip2.goldwars;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
diff --git a/GoldWars/GoldWars/GoldWars.entitlements b/GoldWars/GoldWars/GoldWars.entitlements
index 0c67376..903def2 100644
--- a/GoldWars/GoldWars/GoldWars.entitlements
+++ b/GoldWars/GoldWars/GoldWars.entitlements
@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
-<dict/>
+<dict>
+	<key>aps-environment</key>
+	<string>development</string>
+</dict>
 </plist>
diff --git a/GoldWars/GoldWars/Info.plist b/GoldWars/GoldWars/Info.plist
index 11be888..13fe48d 100644
--- a/GoldWars/GoldWars/Info.plist
+++ b/GoldWars/GoldWars/Info.plist
@@ -15,9 +15,9 @@
 	<key>CFBundlePackageType</key>
 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>$(MARKETING_VERSION)</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
@@ -27,6 +27,7 @@
 	<key>UIRequiredDeviceCapabilities</key>
 	<array>
 		<string>armv7</string>
+		<string>gamekit</string>
 	</array>
 	<key>UIRequiresFullScreen</key>
 	<true/>