Update Jan 1st, 2024: As we previously assumed it seems that the method below only works with clubs that got top 1% in the previous season. As a result the clubs we originally set up in season 1 no longer work for this achievement. The method below will still work with public clubs that fulfilled the requirement.
Please look for and share such clubs in the comment section below.Also make sure to leave the club after you got your achievement to make space for others so people don't have to find new clubs that often.
DISCLAIMER: There are still some things that we don't fully understand yet. It is possible for example that the club mentioned below only works for the current season which lasts from Nov 10th until Dec 22nd. If you find yourself having trouble unlocking the achievement let me know.
The first regular season has ended so Club XIII is no longer the only club to unlock this achievement. Me and a couple of other people on TA (shoutouts to Smarti02, KillCrazyCarl, xNoxa, Kyotic GBaby, meanmachine832, Pipideed, uNeed2Chill and MoG Alucard212) got top 1% on both gens, we'll keep the clubs public. If a club ever gets full drop me a message either here or on Xbox Live and I'll kick people. I'd appreciate however if you could leave the club after getting the achievement so I don't have to do it that often.Follow these steps and hopefully you should unlock the achievement:
1. Join the club
*** Spoiler - click to reveal ***Under Search Club search with the following settings:
Name: Insert club name here (check the comment section or the forum post)
Abbreviation: Leave empty
Kit & Crest: Leave empty
Squad Sice: Any
Language: Any
Matchmaking Region: Any
Friends Clubs Only: No
Accepting Transfer Requests: Any
Public Clubs Only: No
Recently Active Clubs Only: No
Positions Wanted: Any
2. Back out of Clubs completely and re-enter, if you get the message shown in the screenshot below (it was originally taken by Cluck for Club XIII but you'll be looking at something very similar) you're already done
3*. If that didn't work, stay in the club but close the game, go to manage game, delete your save from console only. Boot the game, it will sync your save with the cloud, open Clubs, hopefully you get the message and your achievement now
4. If it still didn't work close the game again but this time delete your save from everywhere (you won't lose UT, Volta or Clubs progress, but you will lose all your career saves and your settings). Open Clubs again, you should get the message and the achievement now.
* If you don't have any career saves you care about you can skip this step and immediately delete your save data from everywhere. It seems as though most people end up having to do this anyway but I've seen some reporting that deleting from console only was sufficient.Screenshot (originally taken by Cluck):
https://imgur.com/a/RtOcLaP