Yao Yuan wasn't one to just theorize, he was a quintessential man of action. With a plan in place, he began to operate.
The first things to prepare were definitely weapons and equipment. His space armor was already the third generation of Space Armor. It combined the advantages of the earlier two generations and added greater defense, movement speed, attack, better energy storage, and it contained one important future-tech design: the battle suit assembly system.
As a specially-made exoskeleton-esque armor for Homo Evolutis, the space armor's specialty was in close-quarters combat, like the battle inside the Shelter, inside the ruin, or when landing on another ship or planet.