Having trouble with the oil expansion, as it just doesn’t seem overly relevant.
Germany gets so much oil no matter what it does.
As you can move cavalaty and infantry without oil, China basically just ignores oil totally, while Japan just doesn’t get to move its capital ships until it takes the money islands, and then from there it’s completely fine.
How do you make the oil expansion actually work? I want Germany to feel forced to have to push south towards the Caucasus’s to get access to valuable oil, instead of just ignoring it for Moscow and literally drowning in oil. Plus, Italy just gets all its oil from Germany once war starts, so it’s fine for them as well.
The rules also aren’t super clear - can UK get the oil in Oman, considering there is fighting in the Mediterranean? If not, can troops near Oman still use it?
Also, all oil goes to centra reserves in home islands - so why do oil Derrick have oil reserves at all if never goes there?