The original PAYDAY: The Heist secret, or the First World Bank secret (also available in PAYDAY 2, of course). Can you do it in stealth? It is widely known that one of the prerequisites to trigger the beeping noise and the red flashing light is for the heist to have gone loud. If you try to get into position while the heist is in stealth, nothing will ever happen.
However, recently someone sent me a link to a privately shared guide which claimed there was a setup to start the OVERDRILL in stealth. Considering the amount of unique visitors and positive ratings the guide had, I absolutely had to check this out...

➽ TIME STAMPS:
0:00 → Known context, and new hidden guide.
0:49 → Issues with the guide method.
4:04 → An easier strategy provided by the guide.
4:48 → The second step.
6:03 → The third and fourth steps.
6:39 → The fifth step.
7:36 → The sixth step.
8:04 → The final steps... will this even work?

8:40 → Unexpected outcome.
9:20 → Silent OVERDRILL?
10:44 → No OVERDRILL.

12:24 → End screen!

➽ DISCORD:   / discord  
➽ STEAM GROUP & GROUP CHAT: https://steamcommunity.com/groups/Mar...

➽ MY HUD + MODS + ECM TIMERS:    • [PAYDAY 2] How to install mods in 202...  
➽ MY STEALTH BUILD:    • [PAYDAY 2] Best stealth build, explai...  
➽ BEST PERK DECK FOR STEALTH:    • [PAYDAY 2] Hacker perk deck 101: basi...  
➽ SAW STEALTH BUILD:    • [PAYDAY 2] The saw expert stealth bui...  

➽ PLAYLISTS? Check out my PAYDAY 2 playlists here!    / marcmb  
➤ Ultimate Stealth Guides (all heists):    • Ultimate Stealth Guides  
➤ Mythbusting:    • Mythbusting  
➤ Advanced stealth concepts explained in detail:    • More stealth guides (and other miscel...  
➤ ECM rushes from start to finish (46 minutes):    • More ECM rushes, from start to finish...  
➤ Best heists for farming (XP, money...):    • Best heists for farming  
➤ Counterfeit full stealth, and stealth printing:    • Counterfeit full stealth, and stealth...  
➤ Your Daily Dose of PAYDAY:    • Your Daily Dose of PAYDAY 2  
➤ Random PAYDAY2 Facts:    • Random PAYDAY2 Facts  
➤ Solo Infamy Farming:    • Solo Infamy Farming  

#PAYDAY2 #Marcmb #OVERDRILL

Huge thank you to ItWasBob, Twits, Dyrax, and ThisIsFun for their help in informing me of this strategy, and recording it!

Recorded with: GeForce Experience
Edited with: Vegas Pro 12.0
Game version: Mar 23rd, 2023 patch (Update 235.1)