Catastrophic Damage rules, p. 9 wrote:
If, during one combat, your ship sustains a number of Damage Cards equal to or greater than your Captain's unmodified Hand Limit [...]
The terminology "sustain a Damage Card" in the Catastrophic Damage rules is ambiguous as to whether damage cards placed into the discard pile (due to Biogenic weapon) count or not.
Example: hand limit is 6 and defense is 3. A token has Antimatter and Biogenic weapons. Unblocked attack is 6. Is the following correct?
12 damage points due to Antimatter weapon.
4 damage cards drawn into hand normally
4 placed into discard pile due to Biogenic weapon.
I am guessing a total of 8 damage cards are "sustained", resulting in Catastrophic Damage in this case.