I can understand and accept a variance of one MPP due to rounding, but when it becomes larger than that I wonder what is going on.
For example, consider the following two Armies. One cost 16 MPP per strength point, whereas the other costs 13 MPP per strength point.
I am seeing the same thing with certain Infantry Corps as well. One thing I believe I am finding is that units that are added via event scripts seem to cost more to reinforce.
Another example, the Afrika Infantry Corps that arrives in North Africa with a strength of '5'. Reinforcing it costs 10 MPPs per strength point. Whereas other Infantry Corps (not added via event) cost 7.5 MPPs per strength point to reinforce.
Hmmm.....