I think the plot of the 11th Soviet mission, "Unshakeable", could use some refinement. The mission description says "The Russians uncover information referring to a secret operation targeting the Japanese weapons developer, Kanegawa Industries. To confront the facts, the Russians attempt to capture the KI Assembly in Japan and acquire all of their technology for themselves." Yet its briefing says Russians are there to investigate Chinese actions of late and captured an unoccupied KI facility to "find out just how far the PRC has gone extracting their tech, and whether they have been sharing to the Comintern like we agreed to". in-game, Norio says this place/mission is an elaborate trap to bury everyone here. Acknowledging this facility has been captured by the Chinese, Russian liaison said the Chinese wants to keep all KI tech for themselves and Russia would lose in the arm race, then called in the cavalry to openly engage the Chinese and capture the KI assembly by force. These neither add up nor make much sense.
1.The Chinese just asked Russians for help to destroy a Psychic Beacon that they shouldn't have, then denied its existence and condemn Russia's "intrusion", which caused Russians to suspect Yuri of collaboration with China. Since Yuri had fled (before Unshakeable happens) and Chinese were playing dumb, the Russians shall make the deal between China and Yuri priority one of their investigation. Yet they ignored this lead and focused on some possible tech share treaty infringement with little to do with The Lunatic instead.
2.The Russians uncovered information referring to a secret operation targeting the KI facility, but they didn't even know the Chinese were already in charge or the Chinese-Pacific pact, so what's the secret operation they knew? What kind of facts they wanted to confront? In my opinion, these are reference to Think Different. After Yuri fled, the Russians found documents related to PsiCorps' operation targeting KI, so they came to Kagoshima (Where both Think Different and Unshakeable happened, though not the same precise location) to find out what Yuri, rather than China, did with KI. Also, Russians think the KI facility was run by Pacific Front, why would they examine Chinese extraction progress from somewhere they hadn't occupied?
3.After they discovered this facility was run by China already, Russian liaison simply jumped to the conclusion that the Chinese wasn't going to share, and summoned heavy reinforcement including Morales to openly engage the Chinese. They should stand down and clear the misunderstanding with Chinese, but instead they escalated the level of conflict and tried to capture a Chinese occupied facility form the latter. China had every right to occupy a KI assembly and they can argue that they hadn't finish the necessary protocols to share their newly acquired tech with Russia, especially they had only recently overrun this facility. Since Russia wants to keep the WSA together rather than tear it apart, it is unreasonable to forcibly capture a Chinese base after being refused entry.
4.It's unreasonable for the Chinese to open fire at Russians, they could just say this place is off-limits. Just as Norio said, this is a trap, but the mission doesn't clearly explain why. According to MO APYR Wiki, it's to conceal the truth of the Sino-Pacific Front alliance, but that's absurd. You cannot bury a whole Russian taskforce including Morales by an earthquake before their General's eyes and act like nothing happened. Maybe to prevent Russia from obtaining KI tech, but as I said above, they could just say this place is off-limits the moment Russians made landfall.
To save the developers' trouble, I've devised a plot I believe is more reasonable and doesn't need re-script of the mission map, as follows:
It's apparent that China's Psychic Beacon was given by Yuri, who has fled. Russians uncovered information referring to PsiCorps' secret operation targeting KI in Kagoshima. They decided to sent forces to Japan to investigate the Sino-Yuri deal and what Yuri wanted and acquired from KI. Conveniently, there's a KI compound in Okawa Falls, Kagoshima, still controlled by Pacific Front. Comrade General is tasked to capture it, so Russia can establish a foothold in Japan to conduct the investigation independently from China and claim some KI tech by the way. Unbeknownst to Russians, China recently overran that compound and, with their good intel, knows Russians are coming. Knowing their own agenda with PF and KI would be exposed if Russian forces begin operating in Japan, and the war with Russia is inevitable, they decided to take advantage of the situation. The plan is to lure Russians ashore and into the compound where the Seismic Stabilizer stands, then destroy the Stabilizer, kill everyone present and blame Russia for the destruction, using this incident as a casus belli to declare war on Russia and justification of their "protection" of Japan. Sadly for them, the Russians successfully defended the Stabilizer and Norio told them everything. Here goes the Dragonstorm.