Madden NFL 24

This achievement is for winning a head to head game in an online league.

Good news is that the method for earning this in Madden 22 and Madden 23 also works in Madden 24. You can do this with one controller and two Xbox accounts:

First, start a Cloud Franchise with a high OVR team. I tried accessing the shared rosters to find a good team, but it just hung for me and wouldn't load so I just used the Eagles.

Next, in the franchise mode, I chose to start from the regular season. You can probably do this starting from the pre-season as well but I did it from the regular season. Your week 1 opponent is the Patriots. Go to the Options tab on the top and scroll down to Member. Click that, choose the Patriots, and invite your second profile (note, your second profile needs to have played Madden 24 already for the invite to be able to be sent. If they haven't yet, exit and launch the game with your second account).

Switch to your second account (with your main account still logged in) and accept the franchise invite. Choose the Patriots as your team. Go to Options > Member once again and click on your team (Patriots) and set Autopilot to anything you want. This will allow you to play against your second profile without needing to control it.

Once that's done, switch back to your main account and start the game. I just played the kickoff and two downs. Once you're on the play selection screen, click the Left Stick in to super sim until the end of the game. The next steps depend on if you win or lose.

If you win:
Click the prompts to return all the way to the league home page. Once there, hit the Xbox guide button to go home, then hit start over the Madden 24 game tile and quit the game. After that, relaunch it, load up franchise mode, and the achievement should pop when you hit the league home screen.

If you lose:
You'll need to repeat the process for the Eagles week 2 (Vikings), week 3 (Buccaneers) , etc. opponents until you win. It took me until week 3 against the Bucs to get this, even though the Eagles are statistically better than both the Patriots and the Vikings.

Obviously this would be faster if you could use an existing OVR 99 team (don't do it yourself as that would take longer than getting this achievement with a default team would take), so if anyone is actually able to get the shared content to load for them, let me know of an existing OVR 99 roster that's usable and I'll throw it in the solution.