Given the two different dynamics to the Carrier Assault game mode in Battlefield 4, it's understandable that some players find it confusing, if not overwhelming. Simply put, it begins as a near identical clone of Conquest, then transitions into Rush as the round progresses. However, just because the concept isn't overly difficult to grasp doesn't mean the strategies are less complex. In fact, more than any other game mode in Battlefield 4, the necessity for communication and coordination has never been greater.
For a more detailed look at what Carrier Assault is all about, including some winning tips, check out this video.