So going from what the chart says you can hold 0/20 to 20/40 from lvl 3 to 4 is wrong or bugged. I went from 0/20 to 5/30 going from lvl 3 to lvl 4 missile silo but in the description it says, " With each level of the silo, five interplanetary missiles or ten anti-ballistic missiles can be stored". So either the chart needs to change or the amount needs to be increased to match the chart
1 - 0 / 0
2 - 0 / 20
3 - 0 / 30
4 - 20 / 40 currently is 5/30 max limit
5 - 25 / 50
6 - 30 / 60
7 - 35 / 70
8 - 40 / 80
9 - 45 / 90
10 - 50 / 100
I have tried to destroy a lvl and rebuild but it sill hasn't changed.