I was surfing through older posts discussing ways to make personal-planetary scale engagements meaningful without Breach or grotesque weapons, and one suggestion was that critical hits could be allowed with a Triumph. I rather like that idea, but I don't want the criticals that result to be powerful by themselves. I am thinking of two solutions:
The first was that Vicious and Lethal Blows do not apply, and neither does the automatic crippling from disruptor weapons. This sounded good until so realized that it doesn't do anything in general, but crushes certain builds. I still think this would be nice for personal scale (the Droid Marauder can be scratched by weapons, but the assassin can't just instagib him), but becomes silly when applied to vehicles.
The second was more crunchy, but I think is better overall. When using a Triumph to make a critical hit through Soak/Armor, the target gains ranks in Durable equal to its silhouette and gains both the Unstoppable talent and Durable ranks equal to its rating if it possesses Massive. A Praetor then is only going to receive a critical hit from small fry if it has already been hit with three critical hits and rolls 92+. Given 5 proficiency dice and the three hits, that means a 3% chance to do something if they are in range to do it. But this would still leave ships vulnerable to Assassin builds.
So I might just combine the two with the houserule about allowing Triumph critical hits. I would love to get some feedback on this from those with more experience.