The Crucible is where all the Destiny 2 PvP arenas can be found and in addition to their standard PvP modes, A new mode is here. Introducing: Countdown.
Gameplay Mechanics
Countdown is 4v4 PvP map where teams are divided into two. Attacking and Defending sides. Each side must either attack or defend the explosive charge found around the map. Each team is given a total of 4 revives and should a team run out of revives before the objective is complete, that team loses.
Attack
The attacking side must activate the charge. Once the charge is activated a countdown will start and members of the attacking team must keep the defending team at bay while the timer on the charge counts down in full-on Counter-Strike fashion.
Defend
The defending team acts like the Counter-Terrorists of Counter-Strike wherein members of the team must prevent the attacking team from activating the charge. Should the attacking team successfully activate the charge, the defending team must diffuse it before the countdown ends and the charge explodes.