Call of Duty: Modern Warfare 2 and Warzone are specifically targeted at mature audiences. Both games depict gunshot wounds, dismemberment, and exposed viscera. The in-game dialogue regularly includes profanity. Some levels include elements such as mutilated corpses and drug paraphernalia.
Players who receive voice chat warnings or in-game voice communication penalties can still play the game. However, per the Offensive Behavior section of the Call of Duty Security and Enforcement Policy, extreme or repeated offenses may lead to a permanent suspension from playing the game online.
Though WhatsApp makes your online status visible to everyone by default, you can easily change it. In fact, because WhatsApp has been known in the past for a variety of security and privacy issues, you may want to minimize your online footprint in the app.
Last seen and online tell you the last time your contacts used WhatsApp, or if they're online. If a contact is online, they have WhatsApp open in the foreground on their device and are connected to the Internet.