Any mission is subject to being affected by modifiers known as Sitreps that put random twists on conditions that can have major effects on what squad and equipment you’ll want to go in with. Many of the original map sets have noticeable new elements to them, such as the Advent City’s new bridges. Neither is what I’d call pretty or colorful, but they’re just as detailed as the original set of locations, and more is always better.
“Many of those take place on new map tilesets like the Abandoned City or the decaying underground sewers – both a stark, refreshing contrast to the gleaming Advent-built metropolises.