You are arriving as the Rescue Company (FAST) on this working fire. Reports are that a mayday has been transmitted on the second floor for an Engine Company of 3. They are reporting heavy fire conditions on floor two, low on air and they are separated/lost. What are you actions? You are a crew of 4. Water supply has been established and one other Engine is arriving simultaneous with your company. Truck Company is 5 minutes out. What are you going to do?