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AFI event is a reboot of their Battle of Hakamaki scenario. It will occur on their server at 1730z on 27 JAN 2019.
More info can be found here (including mod-pack details): https://docs.google.com/document/d/1BXgkhkkk_kmSkcqz-PFN2Z9b-0D_c6WQniMMHmjmpDg/edit?usp=sharing