I think adding a new mark to the chain weapons that does this would work for some people and basically create a new weapon.
But I personally like the the way they work currently, so don’t want that functionality totally removed, it’s just that the animation and camera lock make using it when around a lot of elites pretty suicidal. Which means you have to design your kit around creating stagger for yourself to be able to use it, potentially, in some cases, nerfing yourself. Alternatively, if someone else is providing the stagger (or an ogryn is taunting), then it’s fine, but that can’t be relied on always, and in a solo or clutch situation, you’re just weaker than if you took a different melee weapon and were able to use a different blitz or ability.
But in situations where there aren’t a bunch of elites, it’s very strong, as it completely staggers them while killing them. That said, the time-to-kill for the chainsword/-axe is still worse than some melee weapons and builds, and on the same level as plenty of others.
It’s kind of hard to balance honestly.
You could reduce the time to finish all of the ticks, which would help, but also be a buff, as you’d be able to ultimately kill things faster, while still retaining some of the risk/reward for using the special. I think that risk/reward is part of what makes the weapon (in its current form) compelling to use in the first place, since there’s skill expression. You could keep the animation lock and remove the camera lock. That would help too.
I guess whatever you do to fix the current issue will end up being a buff, and I guess that’s what they need. I just don’t want to go overboard. Because I personally find the eviscerator very strong, the chainsword on vet feels pretty strong (its light attack speed is wild), and the chainaxe on scum is strong as is, it’s just that the latter two can’t really use their special well enough independently.
MarxistDictator’s knockback idea would work too, but will it stagger crushers? Those are the main problem for me with the weapon (well, ogryn-sized and above enemies in general as they block line of sight on each other). That seems like it might get out of control fast. Just chain cc-ing groups of enemies with the special.