I have now 1.4.5 installed with Making History 1.3.0
I note that in GameData there is a Squad Expansion directory and then a Making History subdirectory.
Within that directory are various assets, nodes, missions, etc.
However, when I try to load a mission from the Start Game menu, under "Load Missions" nothing shows up.
When the game itself loads, it makes reference to Making History 1/2 and then 2/2.
What am I missing?