You're meant to be a defender, defending the hostage from Attackers that want to take him. You had four teammates along with you. Warden and Caveira, who were currently roaming the building, then Aruni, who said her Surya Gates up on the windows and was now defending the hostage with you. Lastly was Smoke, who was also with you, and could chuck bombs filled with mustard gas and detonate them when he heard an Attacker go near it. Suddenly, a Cluster Charge is put in one of the windows. However, the Surya Gate breaks it, but breaks the gate as well. He plants another one and detonates it, explosives spread throughout the room, so you, Aruni, and Smoke grab the hostage and run out of the room with him as the explosives blow up, you go back into the room after the explosives stop and notice that one of the Attackers got inside, he had a Riot Shield, so you couldn't shoot him directly, but his feet and hand were in the open, his hand holding a pistol.