According to Activision's post on X (formerly Twitter), the huge file size is due to the increased amount of content available Day 1,  which includes map files for Call of Duty: Warzone, support for Modern Warfare II items, and the new open-world Zombies mode.

This is the case for Call of Duty: Black Ops Cold War as well. The entire game takes a whopping 125 GB on a person's hard drive, which is simply ridiculous since developers should be responsible for optimizing their games on PC.

In this game, you need to destroy numbered balls before they reach the bottom of the screen. Each ball contains a number which indicates the number of hits it requires to be destroyed. Collect circles to increase the number of weapons you can throw at once. Collect stars to unlock new weapons!

At any point during a level, a player can suggest that a throwing star be played - this is signaled by raising a hand. If all the players agree, the throwing star is deployed and each player discards the lowest card in their hand by placing it face up to one side. One throwing star is then set aside.