The Order arriving would be bad, considering many of my Order characters are fascists with superpowers, Grief and Scylla would most likely cause a response from NATO and would invade the west and east coast of the USA, considering lasers and plasma weaponry are developed by my villains in this time it would be way above what we have. The good news is that unlike other stories, my villains treat humans relatively well when they lose, but some villains would be douches. There would be a big market for pets and species that are "less evolved" than them, meaning cats, foxes, and dogs would probably be sold out as the Order keeps them as kindred pets. The US government would be easily crushed under Grief if he put an offensive right into Washington DC, and Atlanta would fall and be used as a staging ground in the USA. Grief would eventually ask for an unconditional surrender provided the planet would permit itself to disarmament with nuclear weapons. Meanwhile Scylla would be the worst and would go on a path of destruction and looting, whereas Amanda would create her own Italian villa and would take over Rome.
For humans, it could be worse considering outright subjugation is not the main objective, but it would be a nightmare regardless. Ironically, Grief who is the main leader would be our best shot for peace, with us decommissioning nuclear plants and disarming the world, he would simply acquire more resources and go back to his own world, but Scylla would want whatever she wants and Amanda would want slaves, (primary military prisoners of war.)