This Guide was borrowed in its entirety from F8L Fool on Playstation Trophies. I've added some minor addendums and formatting, but the bulk of the effort was made by him. I've read through a variety of guides, and his is by far the best. The link above goes to the original, for anyone interested. [i]This section contains the bulk details everyone in the fireteam should know prior to even attempting the raid:[/i] [b][i]Recommended Level[/i][/b] - The best level to fully clear this dungeon is 28, but 27 is still very effective. Although the raid says that it is level 26 the enemies in the final room are actually level 27 and [b][u]28[/u][/b]. This is unlike any other content in Destiny, which never scales above the level required to participate in the Strike or Mission. For every level you are beneath the enemy you are fighting, you will take amplified amounts of damage while suffering an outgoing damage penalty. Being level 25 or lower will result in a [b][u]one shot[/u][/b] from virtually all enemy attacks in Atheon's room. Because of this, I suggest being no lower than 26 when attempting to fully clear through Atheon for the first time, otherwise you will be a huge liability to your group. [i][b]Fusion Rifle[/b][/i] - Each player should bring with them a good Fusion Rifle to deal with the heavily shielded enemies. It is the best weapon against Major and Ultra tier enemies, as well as anything that has a shield or high armor. Although it can’t critical (precision) on weak points it will pierce enemies and is effective from all angles. This is a big deal especially against Templar due to his “Detain” ability. It may be beneficial to secure one rare or better fusion rifle of every damage type to be prepared for every shield type you come across. All three shield types appear in the Vault of Glass. Purple shields are weak to Warp damage, Blue shields are weak to Arc damage, and Orange shields are weak to Solar damage. [i][b]Special and Heavy Ammo Synthesis[/b][/i] - This is a big deal and can really save the raid when you get in a bind. Some encounters a well placed rocket can set the tone for the entire attempt, or save you from a wipe. Being able to continuously use your weapon of choice is invaluable, especially when the ammo drops are in an inconvenient place. Don’t worry about the cost; you’ll make thousands upon thousands of Glimmer during the raid. Easily enough to hit the cap (25,000). [i][b]Coordinate Supers[/b][/i] - This is huge and not enough people take advantage of it. If you use your Super effectively with the rest of the party, you can have a steady stream of them going, using the Orb’s of Light that drop whenever a Super is used against the enemy. Communicate ahead of time when you plan on using a Super. As the fireteam will usually be divided into three groups of two, coordinate closely with the Guardian who will be nearest to you. If you can collect orbs safely without deviating too far from your position of responsibility, do so. Lastly and most importantly… [i][b]Communicate[/b][/i] - Every boss has a mechanic that requires a special amount of attention. If you are near death and can’t fulfill your role let people know. If something spawns that you know should be focused fired, say where and what it is. The quicker your team can react the better your chances of success in the raid. This is particularly true for anything and everything involving the Relic. For this reason, it is essential for every member of the raid to have a functional headset and be linked into party chat. Each phase of the raid will be detailed in the comments below. Remember to sort comments by "Oldest First," in case the section headings aren't clear enough.