Do people who swear by castigator's stance even on melee builds just not use their combat ability when running break the line?
Don't get me wrong, I think the two upgrade nodes to the left are pretty great, especially with shotgun based builds, but that feels like literally the only reason to ever use the thing. I always feel hamstrung by not being able to just shove my way through fire without committing a really long cooldown, not being able to instantly break bulwarks at will, delete mutants before they get the chance to do anything, save my retards from the crusher sneaking up on them from behind, etc.
I checked my Power DI ability usage statistics (with break the line), and in ~17 minute maelstroms they're consistently above 80. There's definitely some slight bias here if and when I find cooldown stimms to spam it for fun, but even shaving 10 off the top for good measure, that's still a huge number.
I don't think I'd consider using it in havoc either, not when BTL flashbang looping can stunlock an entire crowd without eating into shock mines, and even after they fix nuncio, it provides some pretty substantial offensive buffs when dealing with regenerating hordes of armor.