[PvK]

The ship construction is weird and has been explained in several other threads. This may not be clear, but in a nutshell, ships of the same BASIC type (Attack Ship, other hard coded values) count against the amount requested in that file, even if they have different custom names, so:

Build 5 attack ships
Build 6 MYattackShipClass
Build 17 MyOtherAttackShipClass
Build 3 MyThirdAttackShipClass

Will get the AI to build 5 Attack Ships, then 1 of the next type (6 minus 5), then 11 of the other type (17 minus 6), then NONE of the third special type, because there will already be 7 attack ships by the time it falls through to that line, and it only requests 3.

PvK