i have problem with this script... it makes every1 that saysth say with blue text, i just want 1 person or all ct's have blue txt

my code(i know sth is wron ;) ):

adminList = {myUSGN}
function isAdmin(id)
       for _, usgn in ipairs(adminList) do
                if player(id,'usgn') == usgn then
                        return true
               end
        end
        return false
end
addhook([[team]],[[blutxt]])
function blutxt(id,team)
    if team == 2 and rp_ct==true then
        return(true)
    else
        return(false)
    end
end
addhook([[say]],[[admintxt]])
function admintxt(id,txt)
    if isAdmin then
        if not blutxt==false then
            msg("©000050255"..player(id,"name")..": "..txt)
            return 1
        else
            return 0
        end
        else
            return 0
        end
    end
end