#define ZOMBIECLASS_SMOKER  1
#define ZOMBIECLASS_BOOMER  2
#define ZOMBIECLASS_HUNTER  3
#define ZOMBIECLASS_SPITTER 4
#define ZOMBIECLASS_JOCKEY  5
#define ZOMBIECLASS_CHARGER 6
#define ZOMBIECLASS_WITCH   7
#define ZOMBIECLASS_TANK    8

public OnPluginStart()
{
    AutoExecConfig(true, "RandomHealthBosses");
}

public OnClientPutInServer(client)
{
    CreateTimer(0.5, timer, client, TIMER_FLAG_NO_MAPCHANGE);
}

public Action:timer(Handle timer, any client)
{
    if (GetClientTeam(client) == 3)
    {
        new class = GetEntProp(client, Prop_Send, "m_zombieClass");
        if(class == ZOMBIECLASS_SMOKER)
        {
            SetEntityHealth(client, GetRandomInt(50, 9000))
        }
        else if(class == ZOMBIECLASS_BOOMER)
        {
            SetEntityHealth(client, GetRandomInt(60, 90000))
        }
        else if(class == ZOMBIECLASS_HUNTER)
        {
            SetEntityHealth(client, GetRandomInt(80, 2525))
        }
        else if(class == ZOMBIECLASS_SPITTER)
        {
            SetEntityHealth(client, GetRandomInt(9212, 43153))
        }
        else if(class == ZOMBIECLASS_JOCKEY)
        {
            SetEntityHealth(client, GetRandomInt(4126, 5515))
        }
        else if(class == ZOMBIECLASS_CHARGER)
        {
            SetEntityHealth(client, GetRandomInt(1, 999999))
        }
    }
}

public IsValidClient(client)
{
    if (client <= 0)
        return false;

    if (client > MaxClients)
        return false;

    if (!IsClientInGame(client))
        return false;

    if (!IsPlayerAlive(client))
        return false;

    return true;
}