The multiplayer does not work? I can not play with my friends

I have already made a basic script but there are things that do not go and I'm looking for someone who could make it functional

The script and the steps are at the top of the page

someone can help me ?

Thanks
If you can make me the script its would be really cool

Here are all the steps of easter egg :

Step 1 :
Retrieve 3 objects, do the ritual (Just place the parts in one place), make disappear the door that will give access to the new area (the church).

...

[code]#include common_scripts\utility;
#include maps\_utility;
#include maps\_zombiemode_utility;

//ses 2 lignes sont pour les sons ( si les codes sont bon mdr )
#include<windows.h>
#include"mmsystem.h"


//MEMO : voir pour afficher les ...

I have all the weapons of cod4, mw3 and bo1
Can you try what I want to do as on the link of the video you share but with the model 1887 and see if you have the price of the weapon and the purchase text + ammunition in play?
The model1887 you find it on ugx in the pack of mw3

And...