Tony, you will find in PoE that Konstantin tries to design a little too close to history. That is to say he tries to work the outcome more than the situation. When we played it I made a couple of notes.
Scenario 1: He is expecting you to use strategic movement here. Otherwise you will find the scenario is about 4 turns to short.
Scenario 3: Let the Soviet side setup 5 hexes from the hills, or a Japanese unit. Otherwise you will be doing that scenario 2 march all over again. Keep in mind that the intro does say the Soviets were able to use the fog as cover. You may also want to give the Soviets a minor victory if they can dominate just one hill (not both).
Scenario 5: That Captain with the 175th Artillery, make him a Lieutenant and things will work better.
Scenario 6: The armored car brigades need 2 BA-6's. I made some in my
Soviet Supplement 1 a while back. Also the Japanese are trying to exit the west side of the map, the the south.
Scenario 7: He is trying to create 3 fortified lines here. You will have 2 solid rows of 5 entrenchment markers and on row which can have a gap of one hex.
If you have Workers & Peasants, you may want to use those leaders in place of any Road to Berlin leaders which are called for (especially in the Lake Khasan scenarios).