To start, the game is targeted toward mature audiences. The ESRB rated it for ages 17+, citing Blood, drug reference, intense violence, language.  However, one positive thing is that COD games have a Graphic Content filter that can be toggled on.

The Call of Duty: Modern Warfare 2 Campaign has been fully remastered with improved textures, animations, physically based rendering, high-dynamic range lighting, and much more.