Use heat progenitor for blast.

It's better to use blast for AoE because the radial attack doesn't do much damage (it's still useful for spreading status).

Alternatively you can use Target Acquired instead of [Semi-Rifle Cannonade], but this is better QoL since we are less reliant on maintaining [Galvanized Aptitude].

[Primed Cryo Rounds] is just to increase blast weighting. We don't need more status chance from [Rime Rounds] since we have Primary Crux.

Obviously faction mods will deal more damage but I don't like them.

If you need to save on resources, you can leave [Volatile Variant] at rank 0 and it will give you 99% of the effect but this build will cost 1 less forma.