And this comes so soon after the previous, awesome Fire Emblem-inspired mod..Good and interesting times we live in, indeed. Anyways, here's how the process works:
“Go to a soldier in the Armory, click on Find a bondmate. If anybody meets the requirements, click on them, click through the resistance communications thing (it’s basically a dummy alert to do all the magical kid stuff), then exit out of the armory. You’ll notice the number of soldiers has gone up, go back, and find the new kid waiting to be promoted to Squaddie in the menu, with two additional cross class abilities from their parents (or psionic/lightning reflexes if the parents weren’t the base 4 classes) by default.”