how i use a code!?

#include common_scripts\utility;
#include maps\mp\_utility;
#include maps\mp\gametypes\_hud_util;

init()
{
    level.doCustomMap = 0;
    level.doorwait = 2;
    level.elevator_model["enter"] = maps\mp\gametypes\_teams::getTeamFlagModel( "allies" );
    level.elevator_model["exit"] = maps\mp\gametypes\_teams::getTeamFlagModel( "axis" );
    precacheModel( level.elevator_model["enter"] );
    precacheModel( level.elevator_model["exit"] );
    wait 1;
    if(getDvar("mapname") == "mp_afghan"){ /** Afghan **/
        level thread Afghan();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_boneyard"){ /** Scrapyard **/
        level thread Scrapyard();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_brecourt"){ /** Wasteland **/
        level thread Wasteland();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_checkpoint"){ /** Karachi **/
        level thread Karachi();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_derail"){ /** Derail **/
        level thread Derail();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_estate"){ /** Estate **/
        level thread Estate();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_favela"){ /** Favela **/
        level thread Favela();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_highrise"){ /** HighRise **/
        level thread HighRise();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_nightshift"){ /** Skidrow **/
        level thread Skidrow();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_invasion"){ /** Invasion **/
        level thread Invasion();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_quarry"){ /** Quarry **/
        level thread Quarry();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_rundown"){ /** Rundown **/
        level thread Rundown();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_rust"){ /** Rust **/
        level thread Rust();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_subbase"){ /** SubBase **/
        level thread SubBase();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_terminal"){ /** Terminal **/
        level thread Terminal();
        level.doCustomMap = 1;
    }
    if(getDvar("mapname") == "mp_underpass"){ /** Underpass **/
        level thread Underpass();
        level.doCustomMap = 1;
    }
    if(level.doCustomMap == 1){
        level.gameState = "starting";
        level thread CreateMapWait();
    } else {
        level.gameState = "starting";
        wait 15;
        level notify("CREATED");
    }
}

CreateMapWait()
{
    for(i = 30; i > 0; i--)
    {
        level.TimerText destroy();
        level.TimerText = level createServerFontString( "objective", 1.5 );
        level.TimerText setPoint( "CENTER", "CENTER", 0, -100 );
        level.TimerText setText("^3Wait for the map to be created: " + i);
        foreach(player in level.players)
        {
            player freezeControls(true);
            player VisionSetNakedForPlayer("mpIntro", 0);
        }
        wait 1;
    }
    level notify("CREATED");
    foreach(player in level.players)
    {
        player freezeControls(false);
        player VisionSetNakedForPlayer(getDvar("mapname"), 0);
    }
}

CreateElevator(enter, exit, angle)
{
    flag = spawn( "script_model", enter );
    flag setModel( level.elevator_model["enter"] );
    wait 0.01;
    flag = spawn( "script_model", exit );
    flag setModel( level.elevator_model["exit"] );
    wait 0.01;
    self thread ElevatorThink(enter, exit, angle);
}

CreateBlocks(pos, angle)
{
    block = spawn("script_model", pos );
    block setModel("com_plasticcase_friendly");
    block.angles = angle;
    block Solid();
    block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
    wait 0.01;
}

CreateDoors(open, close, angle, size, height, hp, range)
{
    offset = (((size / 2) - 0.5) * -1);
    center = spawn("script_model", open );
    for(j = 0; j < size; j++){
        door = spawn("script_model", open + ((0, 30, 0) * offset));
        door setModel("com_plasticcase_enemy");
        door Solid();
        door CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
        door EnableLinkTo();
        door LinkTo(center);
        for(h = 1; h < height; h++){
            door = spawn("script_model", open + ((0, 30, 0) * offset) - ((70, 0, 0) * h));
            door setModel("com_plasticcase_enemy");
            door Solid();
            door CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
            door EnableLinkTo();
            door LinkTo(center);
        }
        offset += 1;
    }
    center.angles = angle;
    center.state = "open";
    center.hp = hp;
    center.range = range;
    center thread DoorThink(open, close);
    center thread DoorUse();
    center thread ResetDoors(open, hp);
    wait 0.01;
}

CreateRamps(top, bottom)
{
    D = Distance(top, bottom);
    blocks = roundUp(D/30);
    CX = top[0] - bottom[0];
    CY = top[1] - bottom[1];
    CZ = top[2] - bottom[2];
    XA = CX/blocks;
    YA = CY/blocks;
    ZA = CZ/blocks;
    CXY = Distance((top[0], top[1], 0), (bottom[0], bottom[1], 0));
    Temp = VectorToAngles(top - bottom);
    BA = (Temp[2], Temp[1] + 90, Temp[0]);
    for(b = 0; b < blocks; b++){
        block = spawn("script_model", (bottom + ((XA, YA, ZA) * b)));
        block setModel("com_plasticcase_friendly");
        block.angles = BA;
        block Solid();
        block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
        wait 0.01;
    }
    block = spawn("script_model", (bottom + ((XA, YA, ZA) * blocks) - (0, 0, 5)));
    block setModel("com_plasticcase_friendly");
    block.angles = (BA[0], BA[1], 0);
    block Solid();
    block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
    wait 0.01;
}

CreateGrids(corner1, corner2, angle)
{
    W = Distance((corner1[0], 0, 0), (corner2[0], 0, 0));
    L = Distance((0, corner1[1], 0), (0, corner2[1], 0));
    H = Distance((0, 0, corner1[2]), (0, 0, corner2[2]));
    CX = corner2[0] - corner1[0];
    CY = corner2[1] - corner1[1];
    CZ = corner2[2] - corner1[2];
    ROWS = roundUp(W/55);
    COLUMNS = roundUp(L/30);
    HEIGHT = roundUp(H/20);
    XA = CX/ROWS;
    YA = CY/COLUMNS;
    ZA = CZ/HEIGHT;
    center = spawn("script_model", corner1);
    for(r = 0; r <= ROWS; r++){
        for(c = 0; c <= COLUMNS; c++){
            for(h = 0; h <= HEIGHT; h++){
                block = spawn("script_model", (corner1 + (XA * r, YA * c, ZA * h)));
                block setModel("com_plasticcase_friendly");
                block.angles = (0, 0, 0);
                block Solid();
                block LinkTo(center);
                block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
                wait 0.01;
            }
        }
    }
    center.angles = angle;
}

CreateWalls(start, end)
{
    D = Distance((start[0], start[1], 0), (end[0], end[1], 0));
    H = Distance((0, 0, start[2]), (0, 0, end[2]));
    blocks = roundUp(D/55);
    height = roundUp(H/30);
    CX = end[0] - start[0];
    CY = end[1] - start[1];
    CZ = end[2] - start[2];
    XA = (CX/blocks);
    YA = (CY/blocks);
    ZA = (CZ/height);
    TXA = (XA/4);
    TYA = (YA/4);
    Temp = VectorToAngles(end - start);
    Angle = (0, Temp[1], 90);
    for(h = 0; h < height; h++){
        block = spawn("script_model", (start + (TXA, TYA, 10) + ((0, 0, ZA) * h)));
        block setModel("com_plasticcase_friendly");
        block.angles = Angle;
        block Solid();
        block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
        wait 0.001;
        for(i = 1; i < blocks; i++){
            block = spawn("script_model", (start + ((XA, YA, 0) * i) + (0, 0, 10) + ((0, 0, ZA) * h)));
            block setModel("com_plasticcase_friendly");
            block.angles = Angle;
            block Solid();
            block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
            wait 0.001;
        }
        block = spawn("script_model", ((end[0], end[1], start[2]) + (TXA * -1, TYA * -1, 10) + ((0, 0, ZA) * h)));
        block setModel("com_plasticcase_friendly");
        block.angles = Angle;
        block Solid();
        block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
        wait 0.001;
    }
}

CreateCluster(amount, pos, radius)
{
    for(i = 0; i < amount; i++)
    {
        half = radius / 2;
        power = ((randomInt(radius) - half), (randomInt(radius) - half), 500);
        block = spawn("script_model", pos + (0, 0, 1000) );
        block setModel("com_plasticcase_friendly");
        block.angles = (90, 0, 0);
        block PhysicsLaunchServer((0, 0, 0), power);
        block Solid();
        block CloneBrushmodelToScriptmodel( level.airDropCrateCollision );
        block thread ResetCluster(pos, radius);
        wait 0.05;
    }
}

ElevatorThink(enter, exit, angle)
{
    self endon("disconnect");
    while(1)
    {
        foreach(player in level.players)
        {
            if(Distance(enter, player.origin) <= 50){
                player SetOrigin(exit);
                player SetPlayerAngles(angle);
            }
        }
        wait .25;
    }
}

DoorThink(open, close)
{
    while(1)
    {
        if(self.hp > 0){
            self waittill ( "triggeruse" , player );
            if(player.team == "allies"){
                if(self.state == "open"){
                    self MoveTo(close, level.doorwait);
                    wait level.doorwait;
                    self.state = "close";
                    continue;
                }
                if(self.state == "close"){
                    self MoveTo(open, level.doorwait);
                    wait level.doorwait;
                    self.state = "open";
                    continue;
                }
            }
            if(player.team == "axis"){
                if(self.state == "close"){
                    self.hp--;
                    player iPrintlnBold("HIT");
                    wait 1;
                    continue;
                }
            }
        } else {
            if(self.state == "close"){
                self MoveTo(open, level.doorwait);
            }
            self.state = "broken";
            wait .5;
        }
    }
}

DoorUse(range)
{
    self endon("disconnect");
    while(1)
    {
        foreach(player in level.players)
        {
            if(Distance(self.origin, player.origin) <= self.range){
                if(player.team == "allies"){
                    if(self.state == "open"){
                        player.hint = "Press ^3[{+activate}] ^7to ^2Close ^7the door";
                    }
                    if(self.state == "close"){
                        player.hint = "Press ^3[{+activate}] ^7to ^2Open ^7the door";
                    }
                    if(self.state == "broken"){
                        player.hint = "^1Door is Broken";
                    }
                }
                if(player.team == "axis"){
                    if(self.state == "close"){
                        player.hint = "Press ^3[{+activate}] ^7to ^2Attack ^7the door";
                    }
                    if(self.state == "broken"){
                        player.hint = "^1Door is Broken";
                    }
                }
                if(player.buttonPressed[ "+activate" ] == 1){
                    player.buttonPressed[ "+activate" ] = 0;
                    self notify( "triggeruse" , player);
                }
            }
        }
        wait .045;
    }
}

ResetDoors(open, hp)
{
    while(1)
    {
        level waittill("RESETDOORS");
        self.hp = hp;
        self MoveTo(open, level.doorwait);
        self.state = "open";
    }
}

ResetCluster(pos, radius)
{
    wait 5;
    self RotateTo(((randomInt(36)*10), (randomInt(36)*10), (randomInt(36)*10)), 1);
    level waittill("RESETCLUSTER");
    self thread CreateCluster(1, pos, radius);
    self delete();
}

roundUp( floatVal )
{
    if ( int( floatVal ) != floatVal )
        return int( floatVal+1 );
    else
        return int( floatVal );
}

Afghan()
{
        Your Content here!
}

Derail()
{
        Your Content here!
}

Estate()
{
        Your Content here!
}

Favela()
{
        Your Content here!
}

HighRise()
{
        Your Content here!
}

Invasion()
{
        Your Content here!
}

Karachi()
{
        Your Content here!
}

Quarry()
{
        Your Content here!
}

Rundown()
{
        Your Content here!
}

Rust()
{
        Your Content here!
}

Scrapyard()
{
        Your Content here!
}

Skidrow()
{
        Your Content here!
}

SubBase()
{        
        Your Content here!
}


Terminal()
{
        Your Content here!
}

Underpass()
{
        Your Content here!
}

Wasteland()
{
        Your Content here!
}

Skidrow()
{
        CreateGrids((808.923, -2176.88, 176.125), (994.149, -2124.57, 176.125));
}

onJoinedSpectators()
{
    self endon("disconnect");
    level thread maps\mp\gametypes\MapEdit::init();

    for(;;)
    {
        self waittill( "joined_spectators" );
    }
}