When you really compare it to Halo, it's easy to come to that conclusion. For example, one can compare the enemies through type: Fallen=Elites, Cabal=Brutes, Hive=Flood, and Vex=Prometheans. However, Destiny brings to the table its own elements that make it unique and all its own. The RPG aspects of Destiny such as the customisation and class system invite a level of immersion that was never felt in Halo.