On the CT side, giving up a bombsite for free loses you the round. You must understand your specific role based on where you spawn.
The Anchor: The Anchor is the player tasked with playing the extreme extremities of the map (e.g., B-site on Mirage, A-Pit on Inferno). As an Anchor, your job is to stay alive and delay a push as long as possible. You do not rotate until you physically see the bomb on your radar.
The Rotator: The Rotator plays central positions (e.g., Short/Connector on Mirage). You are the dynamic response unit. If your B-Anchor calls that they hear multiple footsteps, the Rotator immediately shifts toward B to help, while the A-Anchor stays put in case it's a fake.