This simply means you are looking at the fourth segment of a multi-part compressed archive (usually .rar or .zip ). It does not represent a "Chapter 4" of the story, but rather a fragment of the data required to install the full game.
As the game progressed through seasons (such as Season 4 and Season 5: Retribution), the story expanded to include "Untold Stories" or mission-based campaigns that dive into specific skirmishes and the personal toll on the soldiers caught in the AXR vs. GSF meat grinder. Community & Distribution Context The specific suffix Nemesis-PLAZA.part4 indicates: Eximius.Seize.the.Frontline.Nemesis-PLAZA.part4...
For more on the official lore and seasonal updates, you can follow Ammobox Studios on Steam or check the official Eximius: Seize the Frontline website. This simply means you are looking at the
The "Nemesis" mentioned in your file name typically refers to the , which introduced significant narrative and gameplay shifts: GSF meat grinder