help needed airstrike sa-mp

// This is a comment
// uncomment the line below if you want to write a filterscript
//#define FILTERSCRIPT

#include <a_samp>
forward sec5(playerid);
forward sec4(playerid);
forward sec3(playerid);
forward sec2(playerid);
forward sec1(playerid);
forward ignition(playerid);
forward bomberbomb_1(playerid);
forward bomberdestroy1();
forward bomber1(playerid);
new bomberplane;
new Marker;
new Float:X,Float:Y,Float:Z;
#if defined FILTERSCRIPT

public OnFilterScriptInit()
{
    print("\n--------------------------------------");
    print(" Blank Filterscript by your name here");
    print("--------------------------------------\n");
    return 1;
}

public OnFilterScriptExit()
{
    return 1;
}

#else

main()
{
    print("\n----------------------------------");
    print(" Blank Gamemode by your name here");
    print("----------------------------------\n");
}

#endif


public OnPlayerCommandText(playerid, cmdtext[])
{
    if (strcmp("/setairstrike", cmdtext, true, 10) == 0)
    {
        GetPlayerPos(playerid,X,Y,Z);
        Marker = CreatePlayerObject(playerid,1318,X,Y,Z,0.0,0.0,0.0,600.0);
        return 1;
    }
    if (strcmp("/startbombing", cmdtext, true, 10) == 0)
    {
        bomberplane = CreateObject(14553,0,0,0,0.0,0.0,180.0,2000.0);

        GetObjectPos(bomberplane,X,Y,Z);
        GetPlayerObjectPos(playerid,Marker,X,Y,Z);
        MoveObject(bomberplane,X,Y-600,Z+100,10000);
        SetTimer("sec5",1000,0);
        return 1;
    }
    if (strcmp("/stopbombing", cmdtext, true, 10) == 0)
    {
        DestroyPlayerObject(playerid,Marker);
        SendClientMessage(playerid,0xFF3333FF,"You stopped your airstrike");
        return 1;
    }
    if (strcmp("/strikehelp", cmdtext, true, 10) == 0)
    {
        SendClientMessage(playerid,0xFF3333FF,"Airstrike System");
        SendClientMessage(playerid,0xFF3333FF,"/setairstrike to set the marker,");
        SendClientMessage(playerid,0xFF3333FF,"where you will be the airstrike and then run away!");
        SendClientMessage(playerid,0xFF3333FF,"/startbombing if you placed your marker");
        SendClientMessage(playerid,0xFF3333FF,"/stopbombing if you will be stopped the bombing");
        return 1;
    }
    return 0;
}
public sec5(playerid)
{
    SendClientMessage(playerid,0xFF3333FF,"5");
    SetTimer("sec4",1000,0);
}
public sec4(playerid)
{
    SendClientMessage(playerid,0xFF3333FF,"4");
    SetTimer("sec3",1000,0);
}
public sec3(playerid)
{
    SendClientMessage(playerid,0xFF3333FF,"3");
    SetTimer("sec2",1000,0);
}
public sec2(playerid)
{
    SendClientMessage(playerid,0xFF3333FF,"2");
    SetTimer("sec1",1000,0);
}
public sec1(playerid)
{
    SendClientMessage(playerid,0xFF3333FF,"1");
    SetTimer("ignition",1000,0);
}
public ignition(playerid)
{
    SendClientMessage(playerid,0xFF3333FF,"FIRE");
    GetPlayerObjectPos(playerid, Marker,X,Y,Z);
    GetObjectPos(bomberplane,X,Y,Z);
    MoveObject(bomberplane,X,Y+1000,Z+100,130);
    SetTimer("bomberbomb_1",6000,0);
    SetTimer("bomberdestroy1",10000,0);
}
public bomberdestroy1()
{
    DestroyObject(bomberplane);
}
public bomberbomb_1(playerid)
{
    GetPlayerObjectPos(playerid, Marker,X,Y,Z);
    DestroyPlayerObject(playerid,Marker);
    CreateExplosion(X,Y-50,Z,7,70);
    CreateExplosion(X,Y-40,Z,7,70);
    CreateExplosion(X,Y-30,Z,7,70);
    CreateExplosion(X,Y-20,Z,7,70);
    CreateExplosion(X,Y-10,Z,7,70);
    CreateExplosion(X,Y,Z,7,70);
    CreateExplosion(X,Y+10,Z,7,70);
    CreateExplosion(X,Y+20,Z,7,70);
    CreateExplosion(X,Y+30,Z,7,70);
    CreateExplosion(X,Y+40,Z,7,70);
}