This post is slightly different as it focuses on missiles rather than ships.
As my OP sets out, the scenarios offered here are 'plug and play' and so not all options would be taken at the same time but rather this is a coverage of my AU ideas. Lots of these missiles are real or are real projects but some of them are inventions of my own.
These are drawn in Soldierbucket scale as FD scale doesn't allow for good detailing of smaller missiles.
So without further ado a potted history of British missiles.
3in RP based Missiles
Artemis - real project, a 3in RP with a simple radar-wave reflection homing head spinning counter-rotation to the missile body with a basic drag brake in the nosecone to bring the missile within the beam of the host night-fighter's AI radar
Ben - real project, two 3in RP mounted together with wings and nose cone with puffer control jets, the wing-tips contain photoelectric cells to keep the missile within a searchlight beam, suitable for land and ship-based launch
Ben Mk.2 - real proposal, the photoelectric cells are replaced by radar-receivers to keep the missile within the radar beam
Firestreak/ Red Top
Firestreak - real missile
Red Top Mk.1 - real missile
Blue Dolphin - based on real Blue Dolphin and Radar Red Top projects, CW radar guidance compatible with a J-band AI.23 and the older AI.18 radar, shares the liquid-fuel motor of the Red Top Mk.2
Red Top Mk.2 - real project, a new encapsulated liquid-fuel motor for increased range and reversion to the faceted nosecone over an improved IR-seeker
Blue Steel
Blue Steel Mk.1 - real missile
Blue Steel Mk.2 - real proposal, the W.114 with the Stentor replaced by four Bristol BRJ.824 ramjets and two extended Gosling boosters for Mach 3 cruising speed
Blue Steel Mk.3 - real Blue Steel Low Level proposal, the Stentor replaced by a Viper turbojet for longer-range at low-altitude
Sea Cat
Sea Cat - real missile
Tigercat - real missile
Hellcat - real project, a helicopter-launched Sea Cat for an anti-boat role
Wildcat - AU missile, a Sea Cat with a HEAT warhead, for launch by Tigercat batteries, Ferret scout cars and Army Air Corps helicopters
Sea Cat 2 - real project, a supersonic development designed to use as much Sea Cat equipment as possible
Bloodhound
QF.169 Bloodhound II - real missile
RO.166 Bloodhound III - real project, historically cancelled in 1960 and feeding into the QF.169. A command-guided variant (guided with 2x Yellow River ground radars and the Argus computer) with a 5-10kT Indigo Hammer fission warhead with a limited ABM capability. In this AU both are developed roughly side-by-side, due to lack of fission material numbers of Bloodhound would be low.
Rapier
ET.316 Rapier - real missile
Rapier FSC - real missile
Sabre - real concept, an air-to-ground missile using the laser seeker from the Copperhead artillery round combined with the Trigat ATGW dual-warhead, lost out to Brimstone historically
Sabre AAMS (Anti-Armour Missile System) - AU weapon, a land-based Sabre fired from standard Rapier launchers to give them a dual SAM/ATGW role
Sea Dart
Sea Dart - real missile
Sea Dart Mk.2 - real project, revised electronics to save weight and space for additional fuel, improved guidance and ECCM, Thrust Vector Control added to an extended Chow booster - which in my AU would give VLS capability (as seen on my Type 43 above)
Sea Dart SSM - real concept, I've tweaked this with an active-radar seeker, would be carried alongside Sea Dart rounds in the magazine
Guardian - real project - a land-based Sea Dart to replace Bloodhound during the 1970s
Confessor (Sea Wolf)
GW.25 Confessor - is the real GW.26 Sea Wolf VLS, Confessor was the original project name
GW.27 Active Confessor - is the real GW.27 Active Sea Wolf project, an active-radar seeker added
Wolverine - real concept, a real land-based project with an ABM capability, in my AU this is based on the GW.27 Active Confessor, would be a weapon for the 1980s, between a later Bloodhound replacement and replaced by Sky Sabre in the 2020s (see below).
Blue Water
Blue Water - real project, inertial guidance and a 10kT 'Tony' fission warhead, truck-launched
Blue Water ALCM - real proposal, an air-launched version with detachable tailcone to reduce drag and an upgraded inertial system
WE.177/ Cub
WE.177B - real bomb
Cub A - real project, the One Club A was a BAC proposal for a Deterrence gap filler following the cancellation of Skybolt, it was a WE.177 bomb with a Raven rocket motor, unguided, the Air Staff quite liked the idea for TSR.2
Cub D - real concept, a concrete-filled dummy round to saturate Soviet air defences
Martel
AS.37 Martel - real missile, radar-homing for SEAD
AJ.168 Martel - real missile, TV-guided
P3T Sea Eagle - real missile
P5T Sea Eagle - real missile, 2x Wagtail rocket boosters for helicopter-launch and cannister-launch from Fast Patrol Boats
P4T Cruise Eagle - real project, cruise missile (Cruise Eagle is my AU name)
P6T Golden Eagle - real project, imaging IR seeker and datalink guidance, cruise missile (P6T is my AU designation)
Ship Martel - real project, Martel with an active radar seeker and sea-skimming capability, boost rocket for cannister-launch
Underwater-to-Surface Guided Weapon (USGW) - real project, a submarine-launched anti-ship missile
Sea Skua
Sea Skua - real missile
Sea Skuarm - AU missile, a passive radar homing missile using Sky ARM technology to provide RN Lynx helicopters with a SEAD capability, service entry in 1990 in time for Desert Storm
Sky Flash
XJ.521 Sky Flash - real missile
Active Sky Flash/ Rb.73 - real project, Thomson-CSF active-radar seeker and revised fins to reduce drag, developed in cooperation with Sweden
ARM Flash - AU missile, a HARM analogue for the RAF to augment the unpopular AS.37 Martel, similar seekers and proximity fuzing retained, in service by 1980
Sea Flash - AU missile but based on real concept, a Sky Flash with folding fins for NATO Sea Sparrow System
Taildog
Taildog/SRAAM - real project, TVC and IR-guidance, fired from a tube-cannister, this is the original Hawker Siddeley Dynamics SRAAM concept
Tailsting/SRATM (Short-Range Anti-Tank Missile) - AU weapon, a Taildog fitted with a laser seeker for anti-armour use
Tailarm/SRARM - real project, a short-range ARM to give fighter-bombers self-defence capability against SAM sites (Tailarm is my AU name)
Typhoon - real project, was a SRAAM/ASRAAM with the Trigat ATGW dual-warhead, historically lost out to Brimstone
SHIELD - real project, a naval SAM version of the basic missile
Meteor
Meteor - real missile
JNAAM/ Meteor 2 - real project, developed in cooperation with Japan with the AESA seeker from the Mitsubishi Electric AAM-4B, some airframe changes for easier internal carriage aboard the Lockheed Martin F-35
Meteor SEAD - AU missile based on real concepts, a radar-seeking ARM to replace ALARM
Meteor LAM - AU missile based on a real concept, a strike/SEAD missile with a multimode radar seeker
Sea Meteor - AU missile, a Meteor married to an ASTER-30 booster to provide a long-range AAM with ABM capability (as seen on my Type 45 above)
Brimstone
Brimstone - real missile
Brimstone 2 - the real dual-mode Brimstone
Sea Spear - real missile, a shore/boat-launched anti-boat missile
Spear 3 - real missile missile under development, an extended-range weapon with a turbofan and flip-out wings
Spear EW - real project, SEAD version with passive radar emission homing
Glide Spear - real proposal, an engineless Spear relying on gliding for range
CAMM
CAMM-A/ASRAAM 2 - AU weapon, originally CAMM included an AAM but instead CAMM technology was used to upgrade ASRAAM. In this AU with Taildog forming ASRAAM, CAMM with an IR-seeker is a new AAM for the 2010s.
CAMM/Sea Ceptor - real missile
CAMM-ER/ Sea Ceptor ER - real missile (Sea Ceptor ER is my AU name)
CAMM/Land Ceptor/ Sky Sabre - real missile
CAMM-ER/ Land Ceptor ER - real missile (Land Ceptor ER is my AU name)
CAMM-S/ Sea Spear - AU weapon, a CAMM with a TV/IR-guidance for land strike
CAMM-SER/ Sea Spear ER - AU weapon, a CAMM-ER with a TV/IR-guidance for land strike (as seen on my AU Type 45 and later frigates above)
CAMM-S/ Sabot - AU weapon, a land-based Sea Spear for precision strike
CAMM-SER/ Sabot ER - AU weapon, a land-based Sea Spear ER for precision strike