I've done that with my RG successors. I use either terminators (with CML) or relic terminators with lightning claws with either eradicators or company veterans with storm shields and combi weapons. I combine them with an apothecary and Lt with storm shield. As a "pack" it does great work. I have used aggressors as well (instead of terminators) but find the lack of a ++ hurts them (as is the case for the eradicators), especially against sisters with melta (common in my meta). I tried running a librarian for the 5++, that works, but not reliably enough against other strong psychic armies. I have found BGV ok-ish, but I find terminators offer more shooting and equal or better melee overall.
What has worked really, really well for me recently is this: 5 company veterans with storm shields and combi-plasma, 5 regular terminators with CML, apothecary with armour for 5++ and Lt with Storm Shield. I've run that in two games a couple of months ago (damn lockdowns!) to great effect. In the first they just sat in the middle scoring oath points hurling bolter shots, krak missiles and plasma shots and daring my opponent (Death Guard) to charge me. In the second (against sisters) I moved them up a flank shooting, killing a wrecking most things.
Now I was running RG successors with bolter fusillades and whirlwind of rage, so re-rolling 1s on bolters and then 1s to wound, 6s to hit in melee generate additional hits was very optimal for that "pack". Also very, very tough as everything had either 4++ or 5++ and a 6+++ I've also had success with Aggressors + an apothecary + Lt. Heaps of bolter shots, great melee threat, but not that to remove (sadly). Still, sooo much daka it's not funny!
I think for BA, a SP with terminators (regular or relic), company veterans with combi-meltas/plasma and storm shields or eradicators would give nice anti-horde and AT shooting whilst also presenting a genuine melee threat. BGV could work as well, as could Aggressors (but without a ++ they wilt like lettuce in the Australian summer).
I think for a genuine TAC-pack, relic terminators with lightning claws (+1 to wound and re-rolling all fails does wonders, especially in BA!) and company veterans with storm shields and choice of combi weapon would be very efficient and durable. Alternatively, BGV and Eradicators (but eradicators will get shot and die more easily). I suppose it is the balance between how much damage they can do before they die (win to eradicators) vs how long they can live doing damage (win to company veterans with storm shields).
That said, if you just wanted the hardest "pack" to remove, then maybe BGV + company veterans with storm shields and combi weapons for 2+, 4++ and 6+++ all-round to make your opponents cry when they can't shoot them off the board and quiver in fear at the prospect of charging either the veterans and getting smashed by the BGV, or charging the BGV, failing to kill them, having them fall back, get shot at by the veterans and then sliced by the BGV
Good point on their S5 attacks!
However for precisely that point I would still prefer to have them closer to the front lines. Even more so if you want to have an Apothecary. Cause that Apothecary is Elite, so why not take a SP instead? And if I take a SP I would want him closer to my melee units either way.
I've been recently contemplating the moving castle formation, with a SP on foot surrounded by Bladeguard and/or Terminators and Eradicators. Centurions could also fit there. Formation would move forward shooting and deploying units to specific tasks or objectives along the way. All the while benefitting from Priest's FnP and occasional healing&raising until I can charge something. After all, EVERY BA unit can be scary while in Assault Doctrine.
Edited by XeonDragon, 07 September 2021 - 02:10 AM.