diff --git a/src/client/component/branding.cpp b/src/client/component/branding.cpp
index 6e981794..95a62748 100644
--- a/src/client/component/branding.cpp
+++ b/src/client/component/branding.cpp
@@ -23,7 +23,7 @@ namespace branding
 				return;
 			}
 
-			if (game::environment::is_mp)
+			if (game::environment::is_mp())
 			{
 				localized_strings::override("LUA_MENU_MULTIPLAYER_CAPS", "H1-Mod: MULTIPLAYER\n");
 				localized_strings::override("MENU_MULTIPLAYER_CAPS", "H1-Mod: MULTIPLAYER");
diff --git a/src/client/component/command.cpp b/src/client/component/command.cpp
index 5fe14c71..6df69d53 100644
--- a/src/client/component/command.cpp
+++ b/src/client/component/command.cpp
@@ -76,7 +76,7 @@ namespace command
 					const auto reset = game::Dvar_ValueToString(dvar, dvar->reset, 0);
 
 					game_console::print(game_console::con_type_info, "\"%s\" is: \"%s\" default: \"%s\" hash: %i",
-						args[0], current, reset, dvar->name);
+						args[0], current, reset, dvar->hash);
 
 					game_console::print(game_console::con_type_info, "   %s\n",
 						dvars::dvar_get_domain(dvar->type, dvar->domain).data());
diff --git a/src/client/component/game_console.cpp b/src/client/component/game_console.cpp
index 192870ad..f76852f2 100644
--- a/src/client/component/game_console.cpp
+++ b/src/client/component/game_console.cpp
@@ -693,8 +693,6 @@ namespace game_console
 				//history.clear();
 			//});
 
-			char a2[1] = {};
-
 			// add our dvars
 			dvars::con_inputBoxColor = dvars::register_vec4(
 				"con_inputBoxColor",
diff --git a/src/client/game/dvars.cpp b/src/client/game/dvars.cpp
index 5a185e99..95898098 100644
--- a/src/client/game/dvars.cpp
+++ b/src/client/game/dvars.cpp
@@ -464,12 +464,24 @@ namespace dvars
 	  "custom_timelimit"
 	};
 
+	bool can_add_dvar_to_list(std::string name)
+	{
+		for (std::uint32_t i = 0; i < dvar_list.size(); i++)
+		{
+			if (dvar_list[i] == name)
+			{
+				return false;
+			}
+		}
+		return true;
+	}
+
 	game::dvar_t* register_int(const std::string& name, int value, int min, int max,
 		game::DvarFlags flags, bool add_to_list)
 	{
 		const auto hash = game::generateHashValue(name.data());
 
-		if (add_to_list)
+		if (add_to_list && can_add_dvar_to_list(name))
 		{
 			dvar_list.push_back(name);
 		}
@@ -482,7 +494,7 @@ namespace dvars
 	{
 		const auto hash = game::generateHashValue(name.data());
 
-		if (add_to_list)
+		if (add_to_list && can_add_dvar_to_list(name))
 		{
 			dvar_list.push_back(name);
 		}
@@ -495,7 +507,7 @@ namespace dvars
 	{
 		const auto hash = game::generateHashValue(name.data());
 
-		if (add_to_list)
+		if (add_to_list && can_add_dvar_to_list(name))
 		{
 			dvar_list.push_back(name);
 		}
@@ -509,7 +521,7 @@ namespace dvars
 	{
 		const auto hash = game::generateHashValue(name.data());
 
-		if (add_to_list)
+		if (add_to_list && can_add_dvar_to_list(name))
 		{
 			dvar_list.push_back(name);
 		}
@@ -522,7 +534,7 @@ namespace dvars
 	{
 		const auto hash = game::generateHashValue(name.data());
 
-		if (add_to_list)
+		if (add_to_list && can_add_dvar_to_list(name))
 		{
 			dvar_list.push_back(name);
 		}
@@ -536,7 +548,7 @@ namespace dvars
 		{
 			const auto hash = game::generateHashValue(name.data());
 
-			if (add_to_list)
+			if (add_to_list && can_add_dvar_to_list(name))
 			{
 				dvar_list.push_back(name);
 			}
diff --git a/src/client/game/structs.hpp b/src/client/game/structs.hpp
index 5004de2b..4b3968a8 100644
--- a/src/client/game/structs.hpp
+++ b/src/client/game/structs.hpp
@@ -932,7 +932,7 @@ namespace game
 
 	struct dvar_t
 	{
-		const char* name;
+		int hash;
 		unsigned int flags;
 		dvar_type type;
 		bool modified;
diff --git a/src/client/main.cpp b/src/client/main.cpp
index 9e7ffcb3..f4e74580 100644
--- a/src/client/main.cpp
+++ b/src/client/main.cpp
@@ -110,14 +110,15 @@ void remove_crash_file()
 	utils::io::remove_file("__h1Exe");
 }
 
-/*void verify_mwr_version()
+void verify_mwr_version()
 {
 	const auto value = *reinterpret_cast<DWORD*>(0x140001337);
-	if (value != 0x24AFEB05 && value != 0x1D860F04) //S1
+	//sp && mp
+	if (value != 0xFFB8006D && value != 0xFFB80080)
 	{
-		throw std::runtime_error("Unsupported Call of Duty: Advanced Warfare version"s);
+		throw std::runtime_error("Unsupported Call of Duty: Modern Warfare Remastered version"s);
 	}
-}*/
+}
 
 void enable_dpi_awareness()
 {
@@ -202,7 +203,7 @@ int main()
 
 			if (!component_loader::post_load()) return 0;
 
-			//verify_mwr_version();
+			verify_mwr_version();
 
 			premature_shutdown = false;
 		}