[dyyni]

>I am very curious about what kind of warfare they are expecting from the east though.

What they're prepared for is a "strategic strike" and/or a limited scale invasion which is a part of a larger conflict in Europe. Combined arms and fast pace, but not a hybrid war like in Crimea or a separate war where Russia is only engaged in Finland. The Finnish Army reformed their doctrine quite recently [1] with the goal of ensuring adequate performance with lesser troops (war time strength has been reduced significantly in the 2000s).

[1] video with Eng subtitles: https://www.youtube.com/watch?v=2crAx8kibis