Battle Royale Achievement Guide

The achievement itself, is pretty RNG based like most of the HOI4 achievements, here is how I did it.

- Set the game to non historical, also change the Soviet Union to Historical in the custom game rules, it doesnt break the achievement and they will be useful for future land leases.

- China makes the "Chinese United Front". In one of my games I had a Chinese United fornt and China had its own too...
- China starts to attack the warlords on the North.
- Japan attacks China and/or the Warlords.
- Sichuan Clique annexed by China.
- Shandong Clique doesen't join to your facion instantly or later.

- Rush down the Mao focus tree and take both inflitrationb system. It will be our keyrole to the achievement.
- Take the usual stuff with the research, starting with, engineering, industry, then guns, artillery, train, suppuort equipment.
- Produce only guns nothing else right now.
- Let every Warlord to join to your faction.
- Use the certain political advisors in this order: Deng Xiaoping (+0,25PP), Xie Juezai (15% PP), Dong Biwu (+10%PP) and lastly Party Magazine for Industrial Concern (+0,25PP). With this buildup you can reach around 2,71-2,83 PP/day.
- Use the basic militia for your army you can get like 40-50 until the war starts. Don't forget to take Zhu De for 0,4 daily army experince and the "On Guerilla Warfare" and the "Assymmetric Warfare" from the focus tree + the People's Militia and the Guerilla war from your doctrine.
- Once you reach 700 PP then the party begins. Start to inflitrate every NON coastal chinese territory, we need 3 mark to every single one of them. Start it with Henan. Dont inflitrate too much territory once, 2 is the safest pick and continue it with Hubei, Anhui, Nanjing, Huangshan, Wuhan, Changde, Hunan, Guizhou, Zunyi, Jiangxi and lastly Guangdong. Guangdong is not a starting chinese state but they got puppeted in every single one of my games and its important to cut the chinese army in half. If China tries to counter you, then use your PP on that certain territory.
- Personally I didnt notice that Henan got a mark back, so the stayed with National China, so be careful with it!

- Start the justification around February-March 1939, I started the war against China in August 17 1939, then take the war goal against Japan once you started the War with China, decleare war on Japan when the wargoal is finished. Also invite the warlords against China to maintain control against them.
- Once to war started every territory will be yours, the manpower, the limited resources and the indsutry. Put everything on guns, but take like 3-4 factory to artillery.
- We didnt inflitrate any of the coastal state of China, and why? Cause Japan can naval invade everywhere and you dont have the army to stop them, thats the reason why we keep a National Chinese wall between us. They can't attack through the Warlords, if you dont invite them to the war against Japan.
- Now you have to take the coastal territory back. First try to rush the ports, cut the main frontline in 3-4 pieces, the AI will panic and then it can't portect any frontline properly + they have a frontline in Guangdong. Sichaun and Guangxi will be our biggest "help" here.
- You are going to have 40-50 division when you start the war + like 30-35 from the inflitrated states. This will be enough to battle plan China. They have limited industry, manpower and you can constantly attack them cause you have the industry + manpower + the land lease friends (Soviet Union, Mongolia, Tannu Tuva, Paraguay and basically any communist country in your non historical madness.
- When the frontline moves, don't forget to leave 5-6 militia in your ports, don't forget Qingdao!
- Add support artillery when you have like 2K in your stockpile to make your army better.
- Start producing support equipment too for the Engineer Company.
- Capitulate China and protect the ports with your life. Once you have 4 equipped army then make a fallback line around 3-4 ports. Donghai, Shanghai, Hangzhou and/or Ningbo are the most attacked states in my game. If they land in your ports then quickly finish them off, do it over and over again for warscore and to lower their army size. Don't take the port back just destroy the landed divisions.
- When you have enough guns and artillery then put two more militia and 3 more artllery in your template, it will be much better to attack even with the japanese air support on. Also you can switch to other lines in your doctrines to boost your artillerys.
- Japan is going to attack the Soviet Union or the Philippines or Australia or Indonesia. so they are going to spilt the army and the port traps are going to be much more better, also make sure that you have to most war contribution.
- Build 2-3 army for Manchuria and attack them once Japan has like 50-60 divisions. Inflitrate every state of "Hebei Chaha" once its done, then you can take the whole country without any fight + you have free road to the sweet industry and resources. Make a few more port trap in Korea too just in case.
- Research transport planes and parachute troops to land in Japan when they have like 30 divisions. Don't forget to have convoys for your main army. Once they got a port in Nagasaki or Hiroshima then send the heavy fire. 2-3 army are going to be more then enough to smoke the rest of them.
- In my playthrough Russia and Australia were my allies. I had 81% war contribution, Russia had 15% and Australia had like 4%, that was more than enough for the capitulation progress.