My preference is:
1) Card based
Yes, I know what Roger is getting at, though cards could be
downloadable and printable for
ease of replacement or duplication. If you have a 'standard deck',
you can also produce a
table to simulate the same effect. But I think if you could find a
way to do a straight
card flip, it'd be faster than a damage chart cross ref.
2) Limited input chart lookup
That's my second choice. Unfortunately, if defender chooses, you
never loose firecons. If
attacker chooses, you always do. If you alternate, it just takes a
turn longer at max.
Too many 'easy to break' points in FT ship design that I wouldn't
think this is the way to
go. So 3 and 4 sound unlikely.