
But... don't worry teams still have their own academies, and youth teams. To maintain the number of German players I've also added important match rules - you need to have a minimum of 6 homegrown players within 20 players assigned as match squad, as well as a maximum of 6 non-EU players in the match squad. This keeps a nice balance, and doesn't make FM engine AI being crazy on 'over' buying foreign players..
As for finances - money prizes are set for each place during the regular season, and of course, TV money is set as well. In addition to that, the play-off winner gets extra 10 million euros.
Main difference between American MLS and German MLS is that here if your team is underperforming you might be relegated to lower league.
Of course you might as well start in German Pro league and then win a promotion to German MLS!
Important note:
Before the start of every new season teams in groups are re-drawn once again. This means for example: that in one year through the regular season you might play against Bayern Munchen, but in the next one Bayern might be in another group (conference) and you might meet Bayern only during play-offs.

How to install German Federal MLS?
Extract file from the "German Federal MLS ver 1" archive and put it in:
"Sports Interactive\Football Manager 2020\editor data"
Discussion: German Federal MLS FM 21 Database
14 comments have been posted so far.
it's ok I've just edited whole British system, will test it on deep waters for 2-3 seasons now. If everything will be fine then I will upload it tomorrow.
Editor gave me an f... when I've tried to build play-offs with 28 teams. So after all I've decided that British MLS will have 4 groups, 16 teams in each.
This gives 30 games for team + potential play-offs, not too much.
Hopefully won't get any bugs because I've also added Celtic and Rangers
The thing imo is 18 + 18 would mean a lot of games would be far too easy for Bayern, Dortmund etc., that's why I suggested a league reduction. Maybe 24 teams into 2 groups? (3x11 games = 33 + play-offs). Or instead, keep it as it is and maybe some of the lower rated teams will step up in coming years. It sounds fun, either way.
Tbh, the idea excites me and I'll love to help you if you need any help, even though my experience with the FM Editor is a bit limited...
That would give just 26 games for your team in regular season. Unless you would like to have 39 games (playing 3 times each group opponent), and then play-offs.
Cross-group games are possible to set with advanced rules but in same time this is the easiest way to 'destroy' database if something would went wrong in one or another season.
There is of course possibility of making 3 groups with 14 teams, or even 4 groups, which would make play-offs longer, and also only last team from each group would be relegated to lower league.
If this is something that you might enjoy then I can create file.
Sorry, I'm kinda dreaming too much
USL Pro - one league with two groups, each group have 20 teams. So total 40 teams are in this lower league.
Thanks for all nice words.
I was thinking of making this for English football system but then whole brexit is killing the mood...
Tho, due to the relegation system, making that in the editor would probably lead to complications in coming seasons.
If there's a draw to randomize the groups at the beginning of each season, then it's amazing!
First USA is much bigger by land then this west/east split makes sense.
And second you can read a bit about how the unification of Germany killed East German football. If I would split it now the way it was in the past then Western Conference would be 'hurt' by it because it will have too many powerful teams so many of them wouldn't qualify to play-offs.. and Eastern well... it will be probably dominated by RB Leipzig all the time.