I love the Initiate change, god they are OP.
I really liked how this patch was going at start, but with the latest patch (and the previous ones), it seems you've undone virtually every change and its starting to look like the patch makes Yuri more stronger, as compared to balanced, specifically against Soviets.
The virus buff basically negates much of the competitive strength of GB, making the faction irrelevant from a balance perspective (Virus was a short-med AI counter, Sniper was a long-range AI counter).
Slave miner balancing is fine - 1500 health is still a lot.
Gattling tank - Again, it seems you're really reluctant to make any change at all. Compared to respective Allied and Soviet (IFV, Flak), this tank is far too tanky and has far more damage. Either it should be weaker, or its range should be reduced.
Masterminds - Your changes seem to come from a perspective that masterminds are lone units. They're always surrounded by a tonne of Yuri units that all act as complete denial. Combine this with how tanky MM already are makes them far more difficult to 'surgical strike' them. MM should be a risky investment considering, not a guaranteed territorial denial.
Boomer - Again, no change to their combat ability. The biggest contention I think is that they are too good against ground. Their missiles should be limited to 1 because they can eliminate most naval threats alone. The BL requirement is not a huge deal because Yuri is going to be getting it anyway. You're only delaying a super OP unit by a minute. No balancing here.
Genetic Mutator - I like the Brute grinding nerf, but by reducing the counter by a minute, you just negated the whole point of the balancing. If Yuri players can turn slaves into brutes a minute earlier, the point of abuse still is the same?
Based on this, I don't really see the point of using this patch in games. Yuri is more or less the same.
Great work so far, though