over 3 years ago - Ubi-Milky - Direct link
Hello brozillazarus20, thank you for reaching out to us about this. This has previously been brought to up to the devs, after each update and was confirmed as intended.

MMR gains and loss are based on your skill rating, performance as a team and your uncertainty stat. Winning/Losing a ranked match will now give a minimum of 25 +/- MMR gain or loss.

The game is confident the rank you have been placed in is correct, so you will have a low uncertainty stat, meaning the game will reward you less MMR.
Only newer players will gain more MMR or lose more MMR because their uncertainty at winning matches stat is higher, as they have not played enough matches for their uncertainty stat to be lowered yet.

After your placement matches and gaining your Rank, the game has a good idea of what skill you have and what uncertainty of winning stat you have if you have been playing the game for some time. The game does not reset these stats with each update, only your Rank. If you place at a lower rank then you did the previous season update this is another reason why you would receive less MMR, as you personally played better in the last season.

The best way to gain more MMR at this point is to beat higher skilled players, the game will reward you with more MMR as it did not believe you were statistically going to win the match.

These changes were last tweaked in the previous Shadow Legacy update and have remained that way since. You can read more about this here -
https://www.ubisoft.com/en-gb/game/r...hmaking-rating