Ok I just got the 10 legacy achievements in 10-15 minutes, Once I got the team sorted.
Ill share here how I did it.
First you need to download my Roster, press
along to customise on the main menu, then select share and manage files from the menu. Then select the download community files option, and download the file seahawkslegacy created by scottish nutter.
Then still in the customise menu, select load and delete files. Tap
to go along to rosters, and then select the seahawkslegacy roster you have just downloaded, to load it into the game.
Go back to the main menu and select franchise.
Choose cloud, and start a new franchise. Make sure to select, use active roster not preason roster.
Make sure you select the Seattle Seahawks and before you start the season, select league settings. Change the skill level to All-Madden, and salary cap to off. Towards the bottom of the menu, Re-sign players, Fill Roster, progress players, sign off season free agents, and simulate game prep activities are all set to on. Also make sure your league is set to private.
Back out of the settings menu, and select change role above. Select a coach, create coach, and the team builder style.
Now start the season, and go down to advance week, tap down so you can select how far to sim, press left to select sim 10 years, and press
and wait for the 10 achievements to pop.
Once you have all 10 achievements you can
to cancel simming, you do not need to wait for the 10 years to finish.