The Bank Heist

Heist Crew. Loot up at the Hangout, then convoy to the Bank. Thermite the vault doors and clear all three vaults as a team. Guards start at the Bank.
Heist Crew. Next, convoy to the Mansion. Break the vault, get to the outside platform, then trigger the mansion explosives and grab the keycard.
Finally, take the keycard back to the Hangout and deposit to register the heist haul before the 10-minute timer hits zero.