Has anyone seen this tactic?
If you're commonly facing a psychic death star or similar this seems like a really good way to cause a wipe on the unit.
First this isn't cheap, it comes in at 345....with Karamazov and the Callidas Assassin.
The Callidas arrives from reserve, before placing her resolve D6 Str4 AP2 hits (pretty sure this will ignore cover too as there's no direction as such)
Then place the Callidas in amongst the unit.
In the shooting phase the Callidas unleashes the Neural Shredder vs. most units auto hitting and wounding on 3's and 4's, with ignores cover AP1
Then using Karamazov's "By Any Means Necessary" target the Callidas with a Psyk-out bomb, it's Str 6, Ord, Large Blast that auto causes Perils on any psyker hit.
Now the Callidas has a 50/50 chance of saving due to her invulnerable save, but with two wounds and T4 she's not going to be shredded by the blast anyway.
That's potentially 3 to 4 ignores armour and ignores cover wounds delivered to a unit inside one shooting phase.
The only negative I can see to this combo is that Karamazov's Orbital Attack surprisingly isn't Barrage, so he'll need LoS to the Callidas to pull it off...
If the Callidas survives for another turn you can do it all over again....followed by an assault from the assassin monster....