If you need to store Pacific cod for longer than a few days, it is best to freeze it. To do this, wrap it tightly in plastic wrap or aluminum foil and then place it in a freezer-safe container or bag. Be sure to label the container with the date so that you know how long it has been stored.
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.