1. Mission entrance : First, you need to go to the old site of Bieyan Construction Site . The iconic character here is Tietou , and he will tell you the clues to the next mission.
2. Interact with Tietou : After finding Tietou, have a detailed conversation with him to get preliminary instructions on the helmet.
3. Find a helmet : Next, go to the cement bag in the pothole and you will meet three staff members who are responsible for distributing helmets and borrow a helmet from them.
4. Cautious Worker Link : Find the character named "Prudent Worker". After completing the conversation with him, you need to return to the previous location.
5. Mission completed : Finally, return to Tietou again and have a final conversation, which will mark your successful completion of the "Universal Hard Hat" mission.
Through the above steps, you will not only get a safety helmet, but also gain an in-depth understanding of the plot and mission design in "Zero Zero". I wish you a happy exploration in the game world!