Specifically, they showcase three fresh Spartan armours on a new map called Vertigo.
Set for release on August 20, the Champions Bundle includes three DLC offerings: the Bullseye Pack, Steel Skin Pack and Infinity Armor Pack.
The Bullseye pack will add two new multiplayer maps, a sports-themed Spartan Armor and a new competitive gravball game type called Ricochet.
The Infinity Armor pack will offer new outfits for your Spartan, and the Steel Skin pack brings 'steampunk style' paint jobs for UNSC, Covenant and Forerunner weapons.
The Bullseye pack will be priced at 480 MSP, the Infinity Armour and Steel Skins packs at 240 MSP each, while the bundle will cost 800 MSP (£6.85 / €9.60 / $10). Ricochet will be exclusive to bundle buyers for two weeks before going on general release.
Following the release of a teaser trailer for a new Halo game at E3 last month, Microsoft Game Studios corporate vice president Phil Spencer said 343 Industries' Halo Reclaimer Trilogy, which began with Halo 4, has been expanded to be "more of a saga".