What are the main benefits of Kurganets (compared to a T-15 in its minimum armour configuration)? I have a vague impression that Kurganets was more of an APC used in less intense combat roles with the T-15 intended to accompany that tanks as an IFV. But I've always felt like I was missing something.
Kurganets is not a vehicle: it's a whole family. T-15 a.t.c. is a vehicle of the Armata family.
The idea was to get rid of the plethora of different vehicles present in a russian great unit (up to 22 in a motor rifle division) to just a single main one + a secondary one for brigade.
And here lies the first problem.
The same term brigade hints clearly that those new families and the
operative concept underneath them were conceived as a part of Serdiukov's reform plans that were mainly cancelled by his successor and actual MoD Shoigu.
With the re-introduction of the divisional level of command one of the fundament of the reform immediately went awry: a brigate level unit equipped with a single or a pair of different vehicles would be reasonable, a whole division would be instead just absurd.
Another big problem is instead the fact that the time to develop all the whole array of specialized vehicles already realized on the basis of the main legacy ones would be enormous in any case.
So, a.t.m. the Russian ground forces are at a crossing point: it is better to keep on with the introduction of the new families, all of them in a massive way or it is instead better to further modernize the legacy platform when convenient?
Quite pragmatically, they have decided to explore all possible paths in the same moment instead to choose just one
A priori without even testing the alternatives routes: so given the enormous size of their own army they will acquire the new family and equip some units with them. in the same time they would modernize the old models when convenient and equip
other units with them.
So they would both have on a side ( I guess near Ukraine) units with the most modern and combat capable fighting vehicles in the world, on the other a great numbers of still efficient and effective fighting units all around in the shortest time possible.
Given that the new families of vehicles would adopt a series of common , modular turrets they are actually installing them also on legacy ones (BMP-2 and BMP-3 above all) and the thing seem to works.
Some commonality was tried, with success, also combining components of different legacy families.
They have re-introducted into services some modernized BMP-1 with engine and transmission of the last series of BMP-2 and the turret of BTR-82A: the units that have tested it ended up preferring them to both of the other.