Make a player stand 1 headshot

[knightscript]

Hello, what i want to do is to be able to stand 1 headshot. what functions should i use? Thank you

[Addlibs]

You can use the standard 'headshot' resource within MTA. Otherwise, use killPed in conjunction with onPlayerDamage on the specific body-part ID (that is, 9, for the head).

[knightscript]

I´m currently using the mta resource, but what I don´t know how to do is to check which users can survive 1 headshot, lets say I saw a zombie resource that does the following:

CLIENT SIDE:

  
helmetzombies = {13,22,23,24} 
function zombiedamaged ( attacker, weapon, bodypart ) 
    if getElementType ( source ) == "ped" then 
        if (getElementData (source, "zombie") == true) then 
            if ( bodypart == 9 ) then 
                helmeted = "no" 
                local zskin = getElementModel ( source ) 
                for k, skin in pairs( helmetzombies ) do 
                    if skin == zskin then 
                        helmeted = "yes" 
                    end 
                end 
                if helmeted == "no" then 
                    triggerServerEvent ("headboom", source, source, attacker, weapon, bodypart ) 
                end 
            end 
        end 
    end 
end 
addEventHandler ( "onClientPedDamage", getRootElement(), zombiedamaged ) 
  

SERVER SIDE:

  
addEvent( "headboom", true ) 
function Zheadhit ( ped,attacker, weapon, bodypart) 
    if (getElementData (ped, "zombie") == true) then 
        killPed ( ped, attacker, weapon, bodypart ) 
        setPedHeadless  ( ped, true ) 
    end 
end 
addEventHandler( "headboom", getRootElement(), Zheadhit ) 

Maybe there is a way to adapt this code to check for users?