APPARENTLY there are 2 versions of this assault vehicle...... One with a 152mm cannon and one with a 125
This MAY be the 125 version. The turret is smaller than the previous one but it has more things hung off of it ( the bright green bits
On one link the point was made that creating 125mm version would be simpler as there is already a 125mm carousel auto-loader whereas there isn't for 152
And then there is this
which aledgedly shows the 125 mm version as a completed test vehicle
and this
I have not attempted an icon of this yet