Also, the Vanquisher is a bit mediocre too. And weirdly, the Genestealer cults have a better one, with access to better smoke launchers too!
Yeah, the Vanquisher is really pretty bad at the moment. I certainly wouldn't take one.
My takes on the Leman Russ variants at the moment:
-The
Punisher is actually totally fine. It lost the ability to move and shoot everything without penalty, but it's only a scant few points more expensive and basically just as effective as it ever was. It won't be glancing Rhinos to death anymore, but no huge loss there.
-The
Demolisher is pretty bad now, simply because the main gun is, on balance, no stronger than the Battlecannon (double the damage except half the shots at 1/3 the range) except in the rare instances you're shooting at more than 5 T5 multiwound models. Which, sure, that might happen sometimes, but often?
-The
Executioner (with Plasma sponsons) is now only usable if you make it a tank commander and fire on Overcharge all the time (while using the re-roll order). Yes, it will probably still explode, but at least it can kick out a decent amount of damage before it does.
-The
Exterminator is a cheaper, more reliable, but less potent form of the Executioner, basically.
-The
LRBT, stock, is okay, but as mentioned the Battle Cannon is fairly "meh." It isn't terrible, but I think you might be better off with a Basilisk. Depends on how useful you feel the sponsons would be. I can see driving one around as a Heavy Flamer caddy, I guess.
-The
Eradicator is pretty terrible now. Ignoring cover at it's AP is really not that much better than the Battlecannon in any way, except lower strength and shorter range.