1.I think the Kurganets next to tank is the IFV version because the turret looks smaller than the others after 6th vechile.
A taller turret generally means the gun is designed to elevate over a wider range and usually denotes either air defence vehicles or artillery vehicles.
I rather suspect the vehicle next to the armata vehicle has the 120mm rifled gun fitted to the armata vehicle depicted and is in fact more of an artillery vehicle. The tank is definitely not to the same scale as the other vehicles.
2.The tower and gun in 2nd Boumerang and at the Kurganetz next to it are the same, so THESE ARE the artilliery gun versions.
But the guns are too small to be artillery, and have been identified as either 57mm or 45mm calibre... which are high velocity anti armour calibres that are designed to defeat enemy IFVs. If they were artillery they would be larger calibre. If they were just for anti armour it would be 125mm smoothbores and they would be tanks. What vehicle needs a high velocity gun to penetrate light and medium enemy armour but does not have enough space for a full size tank gun and ammo? IFV.
3.Last Kurganets is either an anti-tank gun or light tank
Agreed... this is the tank of the Kurganets-25 brigade.
4.Another conclusion is that Taifun is clearly a MPAR vechile
Note Taifun and Typhoon are not the same thing.
Armata, kurganets-25, boomerang, and typhoon were four vehicle families but somewhere along the way they realised that it didn't make sense to have two different vehicle families for medium wheeled vehicle and light wheeled vehicle, so Typhoon has been replaced by a shortened lightened Boomerang.
This means there are only three vehicle family types with two variants... the front engined and rear engined armata is one variant and the boomerang-10 will include 4 and 6 wheeled lightened and shortened versions of Boomerang-25 which will be an 8 wheeled vehicle.
Taifun is an MRAP truck made by a different company.
More on 45mm gun
Telescopic case ammo is small and compact and can be stored and handled in automated ammo handling systems for autoloaders.
I don't think weight would be as much as a problem as ammo size. Since the turret on the new unified chassis hold most of the ammo, it's really hard to judge which would be the better gun.
The 57mm gun would not be much bigger than a 45mm gun, but the ammo size difference would be significant with the 45mm round being much more compact and easier to handle too.
The 57mm gun would have greater capacity for heavier projectiles and higher pressure loadings leading to better performance, and more room for guided rounds and other exotic ideas (even a gun launched UAV perhaps).
So what we see from right to left:
AK-130 (152 mm caliber)
More likely A190 as a designation... it is interesting that this weapon is single barrelled too as there would be no issue with turret size or weight for a ship
ACS and the TLV-based Kamaz
The view is not great but I would say that next to the naval turret is a 152mm gun on a tank chassis which makes it Koalition though of course the chassis will be an armata chassis. The next vehicle is a truck with a similar turret on the back which I would agree with TR-1 and say that would be a 152mm calibre upgrade of Bereg coastal artillery system. The next vehicle is a truck with a large box structure on the rear which I would expect is a support vehicle for the Bereg replacement system
"Kurganets-25" with a 125mm gun (like replacing "Octopus")
So it is the MBT vehicle in the Medium tracked brigades.
"Kurganets-25" and "Boomerang" with 57 mm cannon
I would say either 45mm or 57mm as it doesn't seem to have been decided yet. Either way that makes these two vehicles the IFV of the medium tracked and wheeled brigades respectively.
"Boomerang" ACS 120 mm (Nona-SVK??)
Agreed. Mortar carrier for medium wheeled brigades
Self-propelled mortar on the basis of "Typhoon"
Mortar platoon vehicle based on taifun MRAP vehicle
Self-propelled mortar-based "Tiger"
Yes... likely for mountain units where removing the weapon from the vehicle and carrying it to a better firing position the vehicle can't reach would be a huge advantage. Also Tigr would be able to get to more inaccessible places than a heavier larger vehicle.
"Kurganets-25" with 45 mm cannon
The tower like optics/sensor on the roof of this vehicle makes me think it is designed for indirect fire. As I mentioned above the tall turret suggests the ability for high elevation. Of course if they have developed guided shells in 57mm or 45mm then this could be a new anti aircraft gun vehicle that perhaps operates with TOR or Pantsir-S1. It could be the case that they have decided that TOR and Pantsir-S1 are too fragile or too heavy for medium and light brigades
3. Self-propelled mortar-based armored KAMAZ "Typhoon", in the medium brigades also
Doesn't make sense as adding a Taifun vehicle to a unit equipped with Kurganets-25s or Boomerangs doesn't fit the philosophy behind the vehicle family idea. Especially when a 120mm mortar version of Boomerang and Kurganets should be just as easy to develop.
152-mm self-propelled gun on the basis of KAMAZ will find its place in the medium "wheel" all-arms brigades, and tracked brother - in heavy.
So there will be truck mounted 152mm gun vehicles in Boomerang-25 brigades as well...