[2021] The new Bungie 30th anniversary pulse rifle has a cool reference in its name.

Its called the "BxR-55 Battler." The "BxR" part of the name is in reference to the button combo on the original xbox controller to kill a player instantly up close buy pressing B(melee), then X(cancel), then R(to shoot). The original battle rifle was introduced in Halo 2 and that button combo plagued the multiplayer for a very long time. Cool little nod to the OG gun.