A question of curiosity; if I would be correct in assuming that the greater expense of an SSM is its subspace motivator and advanced/specialized guidance system rather than the wearhead--at least in the case of the Eos--why hasn't the Supernova torpedo (or a variant/upgrade of it) been given SSM capability to make it more cost-effective?
Don't get me wrong; the Eos SSM can be surprisingly effective when used in large numbers, but short of that they lack the damage output to provide anything more than a momentary distraction and supplementary anti-ship firepower.
With a Supernova SSM, my guess is that it'd either be used when the target's point defenses have already been taken down or weakened, or it would be used against high-value targets or major threats when the circumstances warranted it. Given how, in their current usage (until we actually see a Diomedes use Supernovas like its tech description suggests) they're only used as a supplamentary, long-range torpedo for Titans, wouldn't this make them more significant/effective (and more worth producing, thus driving production costs down?) in general? Heck, if you could get affordable Supernova/Helios SSM's, you could forgo conventional heavy bombers in general (you'd still need to take out or distract the target's point defenses first, but it's not like heavy bombers didn't need that already).
Oh, and one last thing: in Cost of War, if the Akula survives the first part of the mission, later on a Tev AWACS vectors in a wing or two of Ares/HercII's that launch a huge barrage of SSM's (well, TAG-C's, technically); something like 8 TAG-C's must have been used. On top of the effect being devastating (even a fresh Karuna's point defenses would get overwhelmed), it was a step up from other SSM strikes seen in this and other missions; was there any unusual set of circumstances that allowed this, or do most SSM strikes usually involve that many TAG-C's?