You'd have to really go back and watch videos of old school Halo. The hype that surround Halo CE and the lines at gaming conventions for Halo 2, finishing the fight in Halo 3. Halo just was spectacular back in those years. Up until recently really. I can't even really call myself a halo fan anymore because I hated Halo 4 and I think Halo 5 is bad(Played the MP beta). It's nothing more than CoD with power armor to me. There is no compelling story and groundbreaking soundtrack anymore. Hell I didn't even care when Cortana "Died" at the end of Halo 4, the whole story was so predictable.