I can never get 3 other ppl together to test out my theories that could activate the next step(I tried the team mate finder). So I figured I would post them here for people who can and would like something else to try.
I don't know how much of it has already been debunked but here it goes & sorry if it has. (let me know so I can strike those out of the message)
I believe that the lobby must contain 2 people who have completed the Maxis side, and 2 people who have completed the Richtofen side. Whether or not the players must control a certain combo of characters could be an extra layer that I thought of (ie: the 2 players who completed Maxis should be Misty and Marlton, the other two are the ones who completed Richtofen).
Marlton is a man of Science so I believe he would follow the instructions coming from transmissions he can hear and not rely on someone he has some disdain for (Samuel). Also as mentioned in other threads Russman and Samuel like each other and seeing as how it is Samuel who can hear Richtofen it would make sense having the 2 players playing as these characters be the ones who have completed Richtofen's side.
Pulling from the transmission from the television on the farm stating the infighting between groups following the orders of these voices I believe that in some way, shape or form the two side need to 'fight.' How? Well I wanted to try a few things but feel free to try them with the set of criteria I have listed above:
[Note]
1) Have Team R turn on the power, have Team M turn it off, have Team R turn it back on. I would do this a few dozen times and if nothing new happens I would put it on the back burner.
2)Have members of Team R and Team M down each other. Ala cooked throwback grenades.
Russman to Marlton (and vice versa)
Misty to Samuel (and vice versa)
3)Have Team M set up two turbines at a previously used street light for the completion of the achievement. Then have Team R EMP the turbines.
4)I wanted to search for other objects to aim at that would cause a streak of light to appear. I believe that if we can find others and time it so that these streaks of light all go to the pylon at the same time we might get something. I also don't believe that the light streak that crosses the bank originates at the bank or cafe next door. If I were to guess from its direction it originates at the Bus Depot or somewhere in between and due to any curving of the landscape might clip through the ground much like the light clips through walls.
5) Have members of one team EMP Jugs causing a member of the opposite team to go down.
These were a few, feel free to add any that you may think of.