Ho-Ho!!
Excellent question about T45's Missile engagement zones etc, the answer, as you proabably suspected, is "of course not"
That's often true if you have the proper missilery, which is SM-2 block 4, and something like the proper radar (""Spy" or its derivatives)
Low flyers, cunning devils that they are, demand that you net your missile capability into a "co-operative engagement capability" This in theory enables one surface vessel to use missiles fired from another to effect an engagement. "CEC" as it is known is not new, and can be used for other aspects of warfare such as McM but in the RN, because of cash and political constraints, a rather difficult situation has emerged. T45 will carry Aster, not SM-2, because, whatever BAe might tell you, it's a French system and that, politically, is tres bon. Our other surface assets however carry Sea-Dart and the two cannot talk to each other. You cannot "gather" a Sea Dart into another ship's engagement zone for a number of technical reasons, but partly because the poor old thing needs an signal up, and past, its chuff to work. If it loses it it goes bang and auto destructs. It's also good if we can all work together, code for working with the Americans. The Americans are somewhat reluctant to share certain bits of sensitive software with anybody (sound familiar?) but they are especially, hugely, determinedly not prepared to share it with, guess who?
This of course completely ignores the fact that we have no "airborne adjunct" to enable the Aster to see low flyers at range anyway. Sampson can sanitize the ship its on, but cannot sanitise other ships beyond its own low level acquisition range which is itself a lot less than Aster 30's engagement range. Ships other than T45's cannot use the T45's aster 30 in a CEC role because they are not equipped to do so, and T45's, or indeed any other ship, cannot use other ships Sea Darts etc because Sea Dart does not have the architecture to do it. And it's unlikely that budget will stretch to more than a notional number of Aster 30's anyway! Wouldn't it be nice if we did away with all these acronyms? What we'll get is a sort of "Co-operative information exchange thingy" Any help?