Hey, all you solo players, as the title says yes the Origins EE is possible to be done in Solo play, while some may not believe me or if you want proof I have the film saved on my Player channel. now the step that everyone is saying you can't do solo is the "Rain Fire" step but you can once you have your Beacon grenades, you have to have patience and wait until Odin's foot closest to the debris that needs to be blown up lights up, now once you see this foot toss your beacon and back up, shoot the foot and then proceed to hit the button where you placed your ultimate staff. Though it's going to be difficult to get down the timing, you just have to have patience and it will all work out in the end. I hope I've shed some light to you guys who would like to try it solo and good luck.
https://www.youtube.com/watch?v=UNSY602fbzw