Fire the Torpedoes

36 hours later.

At the bridge deck of the Morzh Class Submarine, Admiral Vasily yawned after sipping a cup of coffee as he watched his men working on the station with their eyes peeled on the monitor.

They have been following the troopships inbound to Shanghai port since the time they have gotten the orders from the Central Command. A lot of time passed and they still didn't give the order to shoot.

Until there was a shout from one of the men monitoring the sonar. 

"Sir! We are picking up acoustic noise from bearing two seven zero and a distance of eight hundred meters. Based on the frequency, it's a ship." 

"Are there any commercial ships coming to our location?" the man sitting behind the sonar operator asked as he leaned to the side to take a good lock on his monitor.