Due to trailers initially being shown after, or "trailing", the feature film, the term "trailer" was used to describe the promotion; despite it coming before, or "previewing", the film it was promoting.

The term "trailer" originally referred to a promotional advertisement for a feature film that was shown after the end of a screening. These "trailers" trailed the main feature, hence the name.

In conclusion, Call of Duty: Modern Warfare stands out as the easiest and most accessible game in the franchise for beginners. Its comprehensive tutorial, adjustable difficulty settings, and matchmaking system ensure that newcomers can quickly get up to speed and enjoy the game without feeling overwhelmed.