Special Weapons (Halo Waypoint)
From Halopedia, the Halo wiki
Special Weapons was a career award found on the web version of Halo Waypoint from 2009-2014 and on the Xbox 360 version until its discontinuation in 2022. It was represented by a medal shaped like a skull clenching a knife in its teeth with a black and red ribbon. The award consisted of 27 achievements related to specific weapons. These achievements were organized into six tiers.