Posting this in the hopes of it being canonized, although I didn't talk with Zoat about it beforehand so I'm not going to be put out if it doesn't.
The Lantern counter to the new crumbler is similar to bubble wrap. Instead of concentric layers of shields, have a base shield, and lots of small, disconnected shields like bubbles on that layer. A singe crumbler bullet pops one small shield, but doesn't affect anything else. So it takes two sequential hits in the same area to break the base shield. Much cheaper than concentric shields.
Huh, I didn't realize how well tat time would work out. I only put in the time at the last second, and didn't read today's post before posting mine.
You know, I don't see why all the focus is on passive defenses, I.E. armor. Kalmin mentioned ablative shielding to protect against active defenses, but that literally
only protects against heat-based weaponry. Ballistic systems (slower but still perfectly servicable against merely hypersonic projectiles), freeze rays (may or may not halt internal mechanisms depending on the minutia), and focused counter-crumbler fields (depends on precisely how fast a crumbler crumbles), all would be very effective against this sort of round.
And active defenses can't possibly be hard for a ring to achieve, even against hypersonic projectiles. Honestly I'd expect rings to manage tracking even relativistic projectiles, though stopping them would be a issue. We can detect and intercept hypersonic projectiles with
modern computer systems, and while admittedly its a
little hard to make any sort of turret-like mechanism that can point at a high-speed projectile fired at close range it
has been done.
So, if lanterns have access to hypertechnology but are still facing projectiles around the same velocity as we are, active defense becomes
trivial. Intercepting it is cakewalk, and it is, after all, rather hard to armor a bullet.
Personally, since constructs
appear to be able to do things like emit light, etc without any sort of internal mechanism required, I'd just opt for a series of simple spheres which project high intensity light at incoming projectiles, and have the ring handle the object recognition and such since they're so good at it anyway. Though this doesn't help for ablatively-shielded projectiles, and short-term ablative shielding is not particularly heavy or bulky, so a slug-throwing variant would be necessary. Not sure precisely what form that would take, I don't think constructs can themselves form/expand at hypersonic speeds given we've seen them moving at a relative snail's pace when OL has accelerated before. A viable system might be small magnetic masses suspended and accelerated via a spherical magnetic field, allowing nearly-omnidirectional lines of fire at a moment's notice.
Normally, in sci-fi when I see something like this come up, or rather, see it
not come up, I just assume that there's a sort of ECM/ECCM arms race going on in the background that prevents fancy things like bullets which automatically steer into your opponent's skull, or hand-held active defenses that shoot down bullets trying to steer into your skull. But we clearly haven't had anything like that happen here, so it might just be a case of "This is a comic book universe with literally one sensible guy in it".