As a former combat medic, I personally love the idea of repair being more viable.
Repairing battleships should totally be viable. But I think what would be best on big ticket items (like ships) would be a mechanic that does not have efficiency or viability stuck at one point. Whether to keep your ships at the front with Frontline repairs, a safer forward base with repair, or bringing them back to be reclaimed should be a situationally informed decision. I have further ideas but keeping it on repair, we could use this to put in some factional differences. Perhaps something about cybran makes it better for them to cannibalize, (can mantis reclaim) making mantis reclaim more meaningful. While UEF can be repaired more easily (33% cost?), Making sparkles vital. And Aeon just suck or something IDK. Give them a prayer ability that shuts them down and does an auto repair for some mass cost idk. We can finally use the CGs kneel animation.