diff --git a/TeamManager/scripting/TeamManager.sp b/TeamManager/scripting/TeamManager.sp
new file mode 100644
index 00000000..89a85942
--- /dev/null
+++ b/TeamManager/scripting/TeamManager.sp
@@ -0,0 +1,210 @@
+#include <sourcemod>
+#include <cstrike>
+
+#pragma semicolon 1
+#pragma newdecls required
+
+#define MIN_PLAYERS 2
+
+bool g_bWarmup = false;
+int g_Warmup = 0;
+ConVar g_CVar_sm_warmuptime;
+ConVar g_CVar_sm_warmupratio;
+
+bool g_bRoundEnded = false;
+bool g_bZombieSpawned = false;
+bool g_bIgnoreGameStart = false;
+int g_TeamChangeQueue[MAXPLAYERS + 1] = { -1, ... };
+
+public Plugin myinfo =
+{
+	name = "TeamManager",
+	author = "BotoX",
+	description = "",
+	version = "1.0",
+	url = "https://github.com/CSSZombieEscape/sm-plugins/tree/master/TeamManager"
+};
+
+public void OnPluginStart()
+{
+	AddCommandListener(OnJoinTeamCommand, "jointeam");
+	HookEvent("round_start", OnRoundStart, EventHookMode_Pre);
+	HookEvent("round_end", OnRoundEnd, EventHookMode_PostNoCopy);
+
+	g_CVar_sm_warmuptime = CreateConVar("sm_warmuptime", "10", "Warmup timer.", 0, true, 0.0, true, 60.0);
+	g_CVar_sm_warmupratio = CreateConVar("sm_warmupratio", "0.60", "Ratio of connected players that need to be in game to start warmup timer.", 0, true, 0.0, true, 1.0);
+
+	/* Late load */
+	for(int client = 1; client <= MaxClients; client++)
+	{
+		if(!IsClientInGame(client))
+			continue;
+	}
+
+	AutoExecConfig(true, "plugin.TeamManager");
+}
+
+public void OnMapStart()
+{
+	g_bWarmup = false;
+	g_Warmup = 0;
+	if(g_CVar_sm_warmuptime.IntValue > 0 || g_CVar_sm_warmupratio.FloatValue > 0.0)
+	{
+		g_bWarmup = true;
+		CreateTimer(1.0, OnWarmupTimer, 0, TIMER_REPEAT|TIMER_FLAG_NO_MAPCHANGE);
+	}
+}
+
+public Action OnWarmupTimer(Handle timer)
+{
+	if(g_CVar_sm_warmupratio.FloatValue > 0.0)
+	{
+		int ClientsConnected = GetClientCount(false);
+		int ClientsInGame = GetClientCount(true);
+		int ClientsNeeded = RoundToCeil(float(ClientsConnected) * g_CVar_sm_warmupratio.FloatValue);
+		ClientsNeeded = ClientsNeeded > MIN_PLAYERS ? ClientsNeeded : MIN_PLAYERS;
+
+		if(ClientsInGame < ClientsNeeded)
+		{
+			g_Warmup = 0;
+			PrintCenterTextAll("Warmup: Waiting for %d more players to join.", ClientsNeeded - ClientsInGame);
+			return Plugin_Continue;
+		}
+	}
+
+	if(g_Warmup >= g_CVar_sm_warmuptime.IntValue)
+	{
+		g_bWarmup = false;
+		g_Warmup = 0;
+		CS_TerminateRound(3.0, CSRoundEnd_GameStart, false);
+		return Plugin_Stop;
+	}
+
+	PrintCenterTextAll("Warmup: %d", g_CVar_sm_warmuptime.IntValue - g_Warmup);
+	g_Warmup++;
+
+	return Plugin_Continue;
+}
+
+public void OnClientConnected(int client)
+{
+	g_TeamChangeQueue[client] = -1;
+}
+
+public Action OnJoinTeamCommand(int client, const char[] command, int argc)
+{
+	if(client < 1 || client >= MaxClients || !IsClientInGame(client))
+		return Plugin_Continue;
+
+	char sArg[8];
+	GetCmdArg(1, sArg, sizeof(sArg));
+
+	int CurrentTeam = GetClientTeam(client);
+	int NewTeam = StringToInt(sArg);
+
+	if(NewTeam < CS_TEAM_NONE || NewTeam > CS_TEAM_CT)
+		return Plugin_Handled;
+
+	if(g_bRoundEnded)
+	{
+		if(NewTeam == CS_TEAM_T || NewTeam == CS_TEAM_NONE)
+			NewTeam = CS_TEAM_CT;
+
+		if(NewTeam == CurrentTeam)
+		{
+			if(g_TeamChangeQueue[client] != -1)
+			{
+				g_TeamChangeQueue[client] = -1;
+				PrintCenterText(client, "Team change request canceled.");
+			}
+			return Plugin_Handled;
+		}
+
+		g_TeamChangeQueue[client] = NewTeam;
+		PrintCenterText(client, "You will be placed in the selected team shortly.");
+		return Plugin_Handled;
+	}
+
+	if(!g_bZombieSpawned)
+	{
+		if(NewTeam == CS_TEAM_T || NewTeam == CS_TEAM_NONE)
+			NewTeam = CS_TEAM_CT;
+	}
+	else if(NewTeam == CS_TEAM_NONE)
+		NewTeam = CS_TEAM_T;
+
+	if(NewTeam == CurrentTeam)
+		return Plugin_Handled;
+
+	ChangeClientTeam(client, NewTeam);
+	return Plugin_Handled;
+}
+
+public void OnRoundStart(Event event, const char[] name, bool dontBroadcast)
+{
+	g_bRoundEnded = false;
+	g_bZombieSpawned = false;
+
+	for(int client = 1; client <= MaxClients; client++)
+	{
+		if(!IsClientInGame(client))
+			continue;
+
+		int CurrentTeam = GetClientTeam(client);
+		int NewTeam = CS_TEAM_CT;
+
+		if(g_TeamChangeQueue[client] != -1)
+		{
+			NewTeam = g_TeamChangeQueue[client];
+			g_TeamChangeQueue[client] = -1;
+		}
+		else if(CurrentTeam <= CS_TEAM_SPECTATOR)
+			continue;
+
+		if(NewTeam == CurrentTeam)
+			continue;
+
+		if(NewTeam >= CS_TEAM_T)
+			CS_SwitchTeam(client, NewTeam);
+		else
+			ChangeClientTeam(client, NewTeam);
+
+		if(NewTeam >= CS_TEAM_T && !IsPlayerAlive(client))
+			CS_RespawnPlayer(client);
+	}
+}
+
+public void OnRoundEnd(Event event, const char[] name, bool dontBroadcast)
+{
+	g_bRoundEnded = true;
+	g_bZombieSpawned = false;
+}
+
+public Action CS_OnTerminateRound(float &delay, CSRoundEndReason &reason)
+{
+	if(reason == CSRoundEnd_GameStart && g_bIgnoreGameStart)
+	{
+		g_bIgnoreGameStart = false;
+
+		return Plugin_Handled;
+	}
+
+	if(g_bWarmup)
+		return Plugin_Handled;
+
+	return Plugin_Continue;
+}
+
+public Action ZR_OnClientInfect(int &client, int &attacker, bool &motherInfect, bool &respawnOverride, bool &respawn)
+{
+	if(g_bWarmup)
+		return Plugin_Handled;
+
+	if(motherInfect)
+	{
+		g_bIgnoreGameStart = true;
+		g_bZombieSpawned = true;
+	}
+
+	return Plugin_Continue;
+}