Special weapons
From Halopedia, the Halo wiki
Special weapons are a gameplay collectible present in the campaign modes of the Halo first-person shooter games.
Special weapons by game[edit]
Special weapons are primarily found in the campaigns of Halo 5: Guardians and Halo Infinite. They take the form of unique weapons that can be found in their respective campaigns through a variety of methods. These do not include special easter egg-only weapons such as Halo 2's Scarab Gun or Halo 5: Guardians' co-op weapons like Oathsworn.
See below for a list of special weapons, divided by their respective game.