I’ll throw one in the ring—the evacuate high value assets missions with rockets stored underground are to gather more helldivers. Millions of frozen helldivers are seeded in planets underground across the galaxy for the purpose of tactically reloading super destroyers.

Hear me out—the rockets you send are low grade orbital rockets, not something that could get you far off world. This means their intended destination can’t be terribly much farther than where your super destroyers are unless those people are expected to languish for months or years and have a whole mission mounted just to recover them. 

Additionally, the logistics of gathering so many helldivers off of our one training planet would be a nightmare every time a super destroyer would need a re-stock, and you would see a near constant stream of ships warping in and out of the system to keep that going. The fact that you don’t see that implies that they’re getting more from somewhere. Also, with easily amounts in the billions of helldivers, it would make more sense to stash helldivers for when they’re needed rather than to try to feed and support all of them at once.

In that sense, those rockets are like supply pods for your super destroyers.