First of all, forgive me my bad english.

There is couple of things Id like to notify.

First:
There is a typo in the name of Finnish engineering unit. Word
"Kaspanos" doesnt mean a thing, but word "Kasapanos" means explosive
charge, IMO best translation is "Satchel Charge". So I think it is a
misunderstood here, the name of the unit is "Pioneeri" (=engineer) or
on plural "Pioneerit" which means a group of Pioneeri`s.
Another thing about them; I recommend adding up an option to add
satchel charges in their equipment.
( http://www.winterwar.com/Weapons/FinAT/FINantitank2.htm#kasap )
IMO thats pretty good site when it comes to this subject, I mean about
the equipment of winter war.
One thing yet about them: There was 2 engineer units available/
division, but really it is only statistics.

Second:
Finnish army didnt have any Kar98 rifles during the winter war (all
Mauser-rifles were sold in poland during `20-30s). Snipers used mostly
Mosin-Nagant M/91 (with scope). There was multiple rifle-types in use
in the beginning of the winterwar, but all of them were using 7.62 mm
x 54 R ammo, which was standardized.

Third:
AVS-36 "Simonov" and SVT-38 "Tokarev". During the war, thousand (some
say over 12.000) of these rifles were in Finnish hands, so I it would
be great if there would be an option to upgrade NCO or 1/10 of the
unit carrying this gun.

Fourth:
The M/26 "Lahti-Saloranta" was main LMG at the beginning on the war,
but it was very unreliable and lacked ammo capacity, and soon the
Degtyarev DP was favoured by the troops (and there was more DP after
the war in use than there was M/26), but this is really a small thing,
stats are same anyway.