During the First World War, Ukraine was not yet independent and was split between the Russian Empire, and the Austro-Hungarian Empire. As a result, Ukrainians fought on both sides of the war, with 3.5 million fighting in Russia, and 250,000 for Austria-Hungary. Ukraine is an open map with plenty of lines for heavy machine guns in Tannenberg. There are lines of trenches and barbed wire, with limited cover between them. The Tannenberg team also released an article discussing its main design goal of establishing this authentic environment that also offers exciting gameplay. You can find the article here.
Matt Hergaarden, M2H co-founder had this to say:
“We’re pleased to release a free new battlefield for all Tannenberg players today! The Ukraine map is inspired by a key section of the Eastern Front which saw heavy fighting during the Brusilov Offensive, Kerensky Offensive, and major counter-attacks by the Central Powers. Our mappers did a great job turning the reference material into a playable map while keeping the authentic historical feel of the location.”