But it is not regression. The goal was just to shift parthian tactics power into the main HCA unit. they didnt do any change for Mangudai, nerf or buff. They stayed same.
They did. They effectively removed 2 bonus damage from Full Upgraded Mangudai against the spearman-line. I checked the old patches. Full Upgraded Mangudai and Full Upgraded CA did exactly the same damage to spearman-line, this has been true for about 20 years.
The CA had +2 vs.spearman-line and always +2 once Heavy CA. Mangudai having more base attack than CA, had +1 vs. spearman-line instead. Elite Mangudai obviously always +1. The result was that Mangudai and CA did exactly the same damage vs. spearman-line.
But having nerfed Parthian Tactics to +2 (from +4), they incresead the +2 to +4 for the Heavy Cav Archers. But in the process, they did not raise the Elite Mangudai’s bonus from +1 to +3 to compensate.
But in the process they never lowered the amount that Mangudai gets from Parthian Tactics. Mangudai always had the same amount from Parthian tactics that it has now.
Perhaps I have always misunderstood, in which case it is an old mistake.
However, it doesn’t make much sense that Mangudai and CA cause the same amount of damage at the sperman-line, yet Elite Mangudai cause less damage than Heavy Cav Archers once they are full upgraded.
Mangudais, like all Cavalry Archer Unique Units, have always received just +2 vs Spearman from Parthian Tactics.
Cavalry Archers used to receive +4, but this has been reduced to +2 to be consistent with other units, and Heavy Cavalry Archers received 2 additional base bonus vs Spearmen.
In short, Fully Upgraded Mangudais have always dealt 11 damage to Spearmen and Cavalry Archer 13, nothing changed.