If you are expecting your standard war film with a overly melodramatic love story plot line and all the other standard war film plot devices you are looking from the wrong place: Tali-Ihantala 1944 is more of a documentary trying to portray all the military units, which took part of the battle, which turned the war luck in Finland/Russia war to the advantage of Finland.
For a movie there is just too many characters in the story, which are left to the background of the greater drama of warfare. The film shows quite effectively how the military units work together and solely. There's very little sugar coating of the war, so in a word, you could have made three or four different war films from the material portrayed here in. The biggest issue here is, that this would have worked much better as a documentary series, with each episode concentrating on different units and key people. Now the film is too heavy, yet still too short.