You can't build a viable planetary population with only handful of burned out ex spec ops troops, you need women and children as well, plus many more civilians of various trades.
Also Cameron bolthole in periphery doesn't really make sense for Camerons, Hegemony and Terra were their boltholes, that's why they were so fortified along with several secret systems within TH.
What would make sense for Camerons is simply expansion, being boxed in by other five great houses they first turned to colonization of marginal worlds via improvements in terraforming, then there were shared worlds, but next? The only viable solution for expansion was beyond the existing borders of Inner Sphere. It would have to be done in secret though as doing it publicly would trigger a scramble for Africa Periphery, with other great houses having an edge due to being on their border. And since shipping everything from TH to Periphery is such a bother, they would have establish a world (for example) between OA and TC, build up industry needed to support colonization of other worlds, spreading from there. While there would be a military base for protection, most of population would be civilians, in general population should be self replenishing and mostly self-sufficient (can't have them fully independent from Terra, can't we).
Building up this world would be multi-decade effort, gradually moving the settlers there, building up infrastructure... the need to keep it secret taking primacy before doing it faster.