This is not a big problem.
I did it in one day, so you can do it too!
First, you need to go to EAS FC Match Day kickoff and play against a friend with a second controller. You can select 4 minutes/half and do your regular matches. I think you can do this against the computer as well! Remember that match day must be on, otherwise is not working. AND YOU NEED TO BE ONLINE!
You can play with Clubs, National Teams and also have some fun with the Skill Challenges (you can also get a lot of extra achievements while doing this). Also, you can see how many games you have played in the Profile Manager.
Another achievements I got in the process (or you might get) are:
The Big Spender achievement in FIFA 13 worth 13 pointsRedeem an item with EAS FC Football Club Credits. The Challenging achievement in FIFA 13 worth 16 pointsComplete an EA SPORTS Football Club Challenge The 1 week achievement in FIFA 13 worth 44 pointsWin all the EAS FC Match Day Games of the Week in a single week The Go Live! achievement in FIFA 13 worth 29 pointsWin an EAS FC Match Day Live Fixture The Get Physical achievement in FIFA 13 worth 6 pointsSeal out an attacking player to gain possession of the ball The Maxed Out achievement in FIFA 13 worth 13 pointsReach the daily limit of XP in the EA SPORTS Football Club The Bronzed achievement in FIFA 13 worth 43 pointsComplete the Bronze stage of all Skills The Get In! achievement in FIFA 13 worth 19 pointsScore a Diving Header
By the way, you don't need to do this in one sitting. I rebooted my Xbox because it won't connect to the EA server at the beginning of a match and at the 25th match, I got the achievement (and 985 TA at the moment of this guide, because I was one of the first 3 persons in unlocking it!).
I guess you need to be online, to allow the game to download all the EAS FC data, which is a really cool feature in the game!
I hope this guide can be useful, and if you have any improvements/comments let me know.
Sorry about my english if is not very accurate in some parts. ;)
PS. BlakeREVENGE found that if you got Early Access you need to delete the file and start over again to make it pop. Look at the comments for more tips. Thanks to all the people who commented and help improving the solution.
EDIT: Thanks to NmE WaR Eagle for pointing out this (on his own words):
You can track how many "EAS FC Match Day" games EA says you have played from the FIFA 13 Web App: http://www.ea.com/intl/football/myprofile
- it's the only place I have found to see how many games you have played.
EDIT 2: Check NmE War Eagle comments at the bottom, it can help you out. Apparently you need to play the 25 games in between "updates" of the EA servers and using only premium teams (like Chelsea, Manchesters, Liverpool, Juventus, Inter, Milan, Barca, Madrid and so)
That's great! Thanks!