It seems the stock ftrlist.txt in OP has the some of the Hydran III fighters WAY too early (some IIIs come out before their own II counterpart). I just noticed that myself, and have corrected it using data from EAW.
.. however, I'm afraid it's too late for OP itself.
.. no worries, my OP+ fighterlist will have the right data, in the next version.
-- Luc