Blueprints, Please opens during Cheeseball Sub. Talk to Tammy Tumbler at the hub, then detour into the foreman’s office, read the desk papers for the safe combination, and open the safe to claim Tammy’s stolen plans and the 2 Schematics reward.
How to start Blueprints, Please
Once Cheeseball Sub walkthrough is active, return to the P.I. Office hub and speak with Tammy. She sends you after a stolen blueprint set hidden in the shipyards section of the mission.
Because it is tied to the mission window, do not leave the level cleanup until after you finish the chapter.
Walkthrough
Reach the shipyards office block
Play Cheeseball Sub until you reach the warehouse and office stretch. The blueprint detour does not happen at the very start of the mission, so keep moving until you enter the quieter office area.
Get into the foreman’s office
Head for the top floor and use the nearby access point to enter the foreman’s room. The safe you need is inside.
Read the combination note
Check the desk papers inside the office. The safe code is written there, so you do not need a separate puzzle page for this step.
Open the safe
Enter the code, open the safe, and take the blueprints. That flags the side job objective.
Rewards
Turn the job in to Tammy after the mission for 2 Schematics.
That makes Blueprints, Please one of the best early side jobs in the game if you are trying to stay on pace with the B.A.N.G. schematics guide and your general upgrade route.
FAQ
Is Blueprints, Please worth doing early?
Yes. The 2-Schematic reward is one of the strongest early side-job payoffs.
Do you need to find the blueprints before leaving Cheeseball Sub?
Yes. Treat it as mission-bound optional content.