Mission 1: Lighthouse
No keypad locked doors

Mission 2: Cargo Ship
No keypad locked doors

Mission 3: Bank
Keypad to left security booth on first floor: 3624
Keypad to right security booth on first floor: 3624
Keypad to main security room: 2306
Keypad to treasurer's office: 8645
Keypad to bank's back door: 3901
Keypad before president's office: 3490
Keypad to safe in president's office: Code unknown, must be hacked

Mission 4: Penthouse
Keypad to Dvorak room: 0280

Mission 5: Displace
Keypad to door between meeting room and lobby on second floor: 8136
Keypad to door between meeting room and lobby on first floor: 8136
Keypad to CEO's meeting room: 2346
Keypad to CEO's office: 2609
Keypad to fire escape: 3485
Keypad to central server room: Code 2109
Keypad to R&D server room: 9205

Mission 6: Hokkaido
No keypad locked doors

Mission 7: Battery
Keypad to shipping area: 1879
Keypad to elevator: Code unknown, must be hacked

Mission 8: Seoul
No keypad locked doors

Mission 9: Bathhouse
Keypad to owner's office: 3650

Mission 10: Kokubo Sosho
Keypad To Server Room: 194