This will complete the second training room. Be aware that the bottle may be behind the dressers or bed or crib due to explosions.
This will complete the first training room. The first will open after the robot's voice introduces the Sole Survivor to the training. To complete the training, one must enter and complete tasks in three different rooms, unlocked by completing the one before it. There are three rooms that, when completed, reward the player character by unlocking a safe at the end of the corridor which has fusion cores inside. Look for a red rectangle with a yellow border painted on the floor that reads 'TEST AREA.'
Go to the General Atomics factory and enter the Quality Assurance department at the southeast corner of the facility, ground floor.
Reward: Safe containing fusion cores unlocks
