For the Hi requirement I don't think much change is necessary from base CAMM. An IR seeker might give better performance against stealthy targets like anti-ship missiles and a shorter body is needed but the current wider booster gives better acceleration than competing systems like RAM. Perhaps swapping the turnover pack for thrust vectoring would save length too, and add manoeuvrability?
For the Lo requirement the best way IMO would be to effectively recreate IR APKWS from the ground up as a dedicated missile. SAL and other semi-active systems limit rate of fire and impose extra requirements on launch vehicles, but if Cambridge Aerospace can build AR seekers competitively with Shahed cost I don't see why MBDA couldn't do the same. LMM making use of its supposed modularity with an IR seeker would have a similar effect, but vertical launch would be better.
That sounds somewhat familiar tbh. Not sure how relevant it is to this discussion, but I guess it can at least serve as a comparison of sorts, since there are some similar development works here in Poland.
First is the 105 mm C-UAS missile, with a two way data link (which I assume means that command guidance is possible) as well as an IIR seeker (just on renders as of now though) and a maximum range of 15 km, though a rather slow Vmax of just 250 m/s. The missile itself is just 1,8 meters long, which would make it perfect for frontline systems, even ones using vertical launch.
The second development is the "Object 105", a scale model of a 300 mm suborbital rocket*. It comes in two flavors, a single stage one, 2,3 meters long, and a two stage one, 3,3 meters long with a 200 mm booster. These lengths match the length of the Strela-10 (single stage) and the Osa (boosted) missiles, which might be the sign as to what these were meant to be developed into. That project unfortunately went nowhere as our MoD wasn't (and still isn't) interested in developing domestic VSHORAD and SHORAD SAMs, but there is quite a bit of performance data in some research papers (including the table below), so maybe someone could calculate some performance estimates here.
And both of these 105 mm missiles seem kinda similar to the concepts you're describing here, so I thought they're relevant enough to describe here.
*that whole project itself just screams dual use btw - the consortium is led by two military research institutes, the engine calibers (105, 200, 300 and 610 mm) enable usage in military projects, and the whole rocket is designed with maneuverability in mind, unusual for a civilian rocket.
P.S. I'm also pretty sure these could be soft launched, as Mesko did some experiments with soft launching missiles of similar size, specifically with the turnover pack design.
