Finally I got the opportunity to check your oob. It is good.
However I found some interesting figures.
Leo 2A4 frontal armor is corrected. However the side armors seem still old.
FIN hull side steel 9 HEAT 37
GER(91-96) steel 13 HEAT 33
I assume that finns have bought the upgraded "schurzen" Leo2A4s, as fielded by the bundeswehr.
Leo 2A4M concept seems to have only the turret uparmoring package. However this still differs from 2A5 turret scheme.
FIN turret side steel 20 HEAT 50, turret rear 10 and 25
GER turret side steel 30 HEAT 50, turret rear 15 and 30
Probably the finns will eventually upgrade to Leo 2A5 standard, so the concept tank is very good to include.
120mm L44 WG87 and 120mm L44 Fi07 accuracies are still 11, that should be corrected to the new standard of 14. (See main gun acc. thread and ver2.51 US oob)
Another issue (been here before) generic Sniper rifle accuracy is 30. This means that a basic to hit is 50% at 1500meters. Maybe acc should be 15, so base 50% is achieved at 750meters, as some oobs suggest. Heavy Snipers could have the acc. 30.
And I personally have general suspicions about BM II Autocannons capability to penetrate 16cm of rolled homogenous armor. As much as a WW2 17pdr would. Seems unbelievable for a 30mm weapon, whatever magic bullets one could use.