If you haven’t already, you can download the base game (now known as New Light) for free. Whilst this is marketed as free-to-play, it only really serves as a taster. The story has been tweaked to give all new players an introductory experience. There are 3 expansions currently; Forsaken, Shadowkeep and Beyond Light. These are optional and do not require ownership of one another. The game now has a ‘season pass’, much like many free-to-play games, which offers access to seasonal content and rewards. The PvP is predominantly connection-based matchmaking, unlike Halo which was ranked to provide skill based matchmaking. Things have most likely changed significantly since your friend stopped playing on account of content being vaulted. For example, your friend may remember the Leviathan; this has now been removed (but may return in the future). As with any loot based game there is RNG, for some it may feel more (un)favourable than others. End game consists mainly of Raids (subject to ownership of expansion(s)), Dungeons, Grand Master (challenging) Nightfalls, and Trials (a competitive PvP mode) Loot consists of a global loot pool, activity specific loot and exotics. Exotics can drop throughout the world, can be purchased from vendor which refreshes weekly, quests and of course the dreaded RNG in raids. As a fresh player, you would have plenty to do and more so if you purchased the expansions. The best way to see if you like it, as I pointed out at the beginning of my post, is to download New Light now for free.