The only problem I have with the discovery C is the resolution 60 sensor seems pointless, assuming you arm it with the Aegis which has 11 million range and is your AMM which makes sense as a self defence missile, you won't be taking advantage of that sensors range. You wouldn't want to add longer ranged missiles either as magazine space is limited.
I see you're using a reduced size res 1 sensor compared to the Oregon, it's better to use the full size one if space is available. But if not you're better off either increasing the range of the res 1 using the soace taken up by your res 60, or what I would do on a similar design which is design a resolution 60 that's 11 million kilometers so your AMMs can be fired at full range against larger ships. You'll save some space which could go towards something else.
Furthermore 2 launchers isn't really effective either as AMM or particularly for anti ship use. As you haven't quite reached the full size of your jump drive you could cram another couple of size 1 launchers in. I would have minimum of 6 for self defence of a ship like that. More magazine space would be useful too.