[Root_]

AFAIK even if you set ranks for everyone, players will able to see only their ranks. Opening CS:GO netprops will show you (Unsigned) or (Coord) or (NoScale) type nearby netprop values. If () is set, it means you cant send that to everyone but single player. You can try using this snippet

#include <sdkhooks>
enum
{
    NotRanked,
    SilverI,
    SilverII,
    SilverIII,
    SilverIV,
    SilverElite,
    SilverEliteMaster,
    GoldNovaI,
    GoldNovaII,
    GoldNovaIII,
    GoldNovaMaster,
    MasterGuardianI,
    MasterGuardianII,
    MasterGuardianElite,
    DistinguishedMasterGuardian,
    LegendaryEagle,
    LegendaryEagleMaster,
    SupremeMasterFirstClass,
    TheGlobalElite
}
public OnEntityCreated(entity, const String:classname[])
{
    if (StrEqual(classname, "player_manager", false)
    || StrEqual(classname, "cs_player_manager", false))
    {
        SDKHookEx(entity, SDKHook_ThinkPost, OnResourceThink)
    }
}
public OnResourceThink(entity)
{
    static m_iCompetitiveRanking = -1, playerrank[MAXPLAYERS + 1] = {TheGlobalElite, ...}
    if (m_iCompetitiveRanking == -1)
    {
        m_iCompetitiveRanking = FindSendPropInfo("CCSPlayerResource", "m_iCompetitiveRanking")
    }

    SetEntDataArray(entity, m_iCompetitiveRanking, playerrank, MaxClients+1, _, true)
}