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"Happiness is like glass, you might not always notice it but if you change your view and then that glass will sparkle when it reflects the light."
In Cole Protocol, Captain Keyes visits a planet called Chi Rho. Chi Rho was made a last stand fortress and after Cole protocol it is never mentioned again. Can somebody explain what happened to it? Did it get glassed? Or was it abandoned by the unsc when it moved the troops closer to earth or did the covenant actually never found it?