Check if you have FSPort 3.0.3 tables installed? Do they also fire FS1 secondaries (that would be weird)?
I made the ships.tbl myself copying the ships.tbl from FSPort 2.3, removing all the FS1 weapons (even secondaries, so I can't tell you...

) and adding some other ships from other campaigns (like the GTT Hunter from FSPort 3.0.3, and I replaced its weapons in this way: ML-17 --> Subach HL-7, Fury --> Tempest and so on...).
EDIT: I don't know why, but now... the primaries... work.

Uhm... I didn't change anything in the tables... Well, sorry for having opened this topic uselessly...
