Hammer Storm

TE4ESGTv5J8 Hammer Storm is a content update for Halo 5: Guardians, released on February 24, 2016. The update included a new multiplayer map, new game modes, weapons, and Requisitions.

Maps

 * Torque for Arena
 * Grifball Court for Grifball

Game modes

 * Assault
 * Grifball
 * Oddball
 * Ricochet
 * Fiesta Slayer

Weapons

 * BR85N battle rifle
 * BR85N with Extended Magazine
 * BR85N with Knight blade
 * M20 SMG
 * M20 with Extended Magazine
 * M395B DMR
 * M395B with Extended Magazine
 * M395B with Knight blade
 * M6D magnum
 * M6H2 magnum
 * M6H2 with Extended Magazine
 * MA5D assault rifle
 * MA5D with Extended Magazine
 * MA5D with Knight blade
 * Type-2 gravity hammer
 * Type-55 Storm Rifle
 * Fury
 * Blissful Slumber

Weapon Skins

 * Last Dawn (Battle Rifle, DMR, Magnum, SMG, Assault Rifle)

Armor sets

 * DECIMATOR-class Mjolnir
 * HELIOSKRILL-class Mjolnir
 * Helioskrill Bloodgorger
 * Helioskrill Warbound
 * JUMPMASTER-class Mjolnir
 * Jumpmaster Dispatcher
 * MARAUDER-class Mjolnir
 * Marauder Keres
 * Marauder Kratos
 * SHINOBI-class Mjolnir
 * Shinobi Heartless

Assassinations

 * Knee-dful Things
 * Terminal Velocity

Visors

 * Mad Dog

Emblems

 * Golden Arm
 * Grifball
 * Ducat
 * Kinetic
 * M6D
 * Rabbit
 * Spartan Helmet
 * Tartan
 * Triplicate
 * Vertigo

Stances

 * Hammer Time
 * Old School

Tweaks

 * Color palette for armor and emblems expanded from 32 to 60 colors, although certain preexisting colors such as Teal are removed.
 * "Harmonies" (pre-set color combinations) for emblems are replaced, players can manually select the primary, secondary, and tertiary colors for their emblems as in prior Halo games.

Trivia
If you wore a color that was removed before the update happened, then your spartan defaulted to pink after the update happened.