I can't write an overview based on this information. The coverage provided is about a Call of Duty: Black Ops 7 event called "Zombies Last Call," not about a game titled "The Last Call" released on PC in April 2020. These appear to be unrelated.
To write an accurate overview, I'd need coverage that actually discusses The Last Call itself - its gameplay, updates, player reception, or community discussion. Please provide relevant coverage for the correct game.
via GameRant
Black Ops 7 brings its first big event following the end of the Modern Warfare 4 Beta. Here is how to complete the Zombies Last Call Event fast.