¿What do you think of this plot for a Red Alert 3 mod?

In a parallel reality, the Empire of the Rising Sun used an experimental device to send messages to a Rising Sun Empire that had won to help them. In the end, the signal was captured in a reality where normal World War II occurred but the Axis won. The local Japanese Empire received the signal but, realizing that they would not be able to send adequate reinforcements, decided to delegate it to the Germans. The Germans luckily had a device that allowed them to travel to other realities. It was difficult to handle, but thanks to the received signal, they were able to establish a direct link with that reality. The German army was deployed, surprising the Allies, who devised a plan to stop this threat. The plan was to use chrono technology to cut the link between realities and be able to defeat the Empire of the Rising Sun once and for all.

Note: If I ever make a mod of that, beyond not being able to get actors, the worst thing would be that I can't think of another construction system. Perhaps it would have to be that of the Empire of the Rising Sun with The excuse is that it is a technology that they provide in exchange for support.