multiple_tanks.sp

#include <sourcemod>
#include <sdktools>

new Handle:g_hTankHealth;
new g_iTankCount;

#define MAX_TANKS   2

public OnPluginStart()
{
    g_iTankCount = 0;

    HookEvent("tank_spawn", tank_spawn);
    g_hTankHealth = CreateConVar("tank_health", "7500");
    CreateTimer(60.0, CheckPlayers, _, TIMER_REPEAT);
}

public Action:CheckPlayers(Handle:timer)
{
    new GetSurvivors = GetSurvivorCount();

    if (GetSurvivors >= 15)
    {
        if (GetConVarInt(g_hTankHealth) != 65000)
        {
            SetConVarInt(g_hTankHealth, 65000);
        }
    }
    else if (GetSurvivors >= 13 && GetSurvivors < 15)
    {
        if (GetConVarInt(g_hTankHealth) != 60000)
        {
            SetConVarInt(g_hTankHealth, 60000);
        }
    }
    else if (GetSurvivors >= 11 && GetSurvivors < 13)
    {
        if (GetConVarInt(g_hTankHealth) != 50000)
        {
            SetConVarInt(g_hTankHealth, 50000);
        }
    }
    else if (GetSurvivors >= 9 && GetSurvivors < 11)
    {
        if (GetConVarInt(g_hTankHealth) != 40000)
        {
            SetConVarInt(g_hTankHealth, 40000);
        }
    }
    else if (GetSurvivors >= 5 && GetSurvivors < 9)
    {
        if (GetConVarInt(g_hTankHealth) != 20000)
        {
            SetConVarInt(g_hTankHealth, 20000);
        }
    }
    else
    {
        if (GetConVarInt(g_hTankHealth) != 7500)
        {
            SetConVarInt(g_hTankHealth, 7500);
        }
    }

    return Plugin_Continue;
}

stock GetSurvivorCount()
{
    new hsurvivors = 0;
    for (new i = 1; i <= MaxClients; i++)
    {
        if (IsClientInGame(i) && !IsFakeClient(i))
        {
            hsurvivors++;
        }
    }

    return hsurvivors;
}

stock SpawnTank()
{
    new flags = GetCommandFlags("z_spawn_old");
    SetCommandFlags("z_spawn_old", flags & ~FCVAR_CHEAT);
    ServerCommand("z_spawn_old tank auto")
    SetCommandFlags("z_spawn_old", flags);
}

public tank_spawn(Handle:event, const String:name[], bool:dontBroadcast)
{
    g_iTankCount++;

    new userid = GetEventInt(event, "userid");
    new TankHP = GetConVarInt(g_hTankHealth);
    CreateTimer(0.1, tmrHealth, userid);
    PrintToChatAll("\x04[TANK] \x01Um Tank Acabou de Nascer (\x03%i HP\x01)", TankHP);

    if (g_iTankCount < MAX_TANKS)
        SpawnTank();
}

public Action:tmrHealth(Handle:timer, any:userid)
{
    new client = GetClientOfUserId(userid)
    if (client && IsClientInGame(client))
    {
        SetEntityHealth(client, GetConVarInt(g_hTankHealth));
    }
}