Before I present the list, allow me to explain my thoughts on Templars. Templars lack the cheap activations that other space marine armys have and can't call upon the assistance of the Imperial navy for fighter support or Titan legions for the durability/ hitting power of reavers or the fast surgical strikes against AA that warhounds provide. This means they often struggle in the activation department and require a slightly different approach to traditional marines. It is my current view that in order to be successful Black Templars need to be very aggressive, very early. The only way they're going to acheive activation parity/advantage is through breaking enemy units really on in the game through heavy use of drop podding and air attacks. The aim here is to break or destroy as many enemy units as possible in the first turn and then use quick, mobile units to spread out and capture objectives once the main areas of resistence have been overcome. So with this in mind, here's what I'm currently thinking:

Strike Cruiser - 200

Tactical fm 1
6 x Tacticals + Emperor's champion + Chaplain + 2 x LRC - 575 BTS

Tactical fm 2
6 x Tacticals + Marshall + 2 x LRC - 550

Landing craft - 350 (Carries the 2 above fms and planet falls)

Devastators + 1 x Dreadnought - 300 (Drop pods to spread a little blast marker love and can add support fire to nearby engagements)

Assault marines + Chaplain - 225

Assault marines - 175

Thunderhawk - 200 (Carries the above)

Land speeders - 200

Land speeders - 200

2975 pts

9 activations (10 with the strike cruiser)

Probably not going to see me winning any tournaments anytime soon and quite dependent on guessing the opponent's deployment but should hopefully be challenging to play with and against and if nothing else is quite representative of what I imagine a crusading army to look like.

Thoughts?

I think this makes sense, but it's a shame that the iconic BT Neophytes don't really work.

On the list, is it necessary to attach the LRC's to the Tacticals?

Just a purely theoretical idea ... if the Tacs could get by without attached transport, you could use those points for a separate fire support formation instead of transport/assault. That would give you another activation and instead of having 2 moderately fast formations, you'd have one fast and 2 slow. The initial drop/assault wave should be just as strong, as you'd be able to put the fire support armor into support range and actually line up more support attacks. You'd have more combined assault options with the Marshall for a little bit more flexibility in how you set up a major assault. Three formations in the follow on turns should be as flexible even without the transport speed.

Of course that pretty much removes any characteristic BT traits except the Emperor's Champion - No LRCs, no Neophytes.

Indeed all out attack seems to be the best way to go with the Black Templars personally I would go with something like the following.

Strike Cruiser - 200
Devastators - 250
Tacticals + Supreme + 2 Neophytes + Razorback + Hunter - 550
Landing Craft - 350
Land Raider Crusaders - 350
Landing Craft - 350
Speeders - 200
Speeders - 200
Speeders - 200
Terminators - 350

Its probably all a bit hit or miss to do well over a five game tourni but probably good fun to play with.