Under Surveillance is a main story mission in GTA 3, given to Claude by Asuka Kasen.
It's the 32° mission in GTA III in chronological order, and it takes place in Staunton Island. It becomes available after completing Sayonara Salvatore.
Asuka needs some FBI dealing with.
Under Surveillance: Mission Objectives
- Take out the three groups of spies.
Under Surveillance: Mission Info
- Mission Number 32
- Mission Type Mandatory Mission
- Mission Giver
Asuka Kasen - Location Asuka's Condo, Newport
- State / Area Staunton Island
- Available After Mission (Story Mode)
- Required for 100% Yes
- Rewards $15,000
- Unlocked Items
Kanbu Bust-out 
Paparazzi Purge - Featuring
Pony 
Rumpo Asuka Kasen 
Kenji Kasen 
Leone Family (The Mafia) - Notes The three groups of FBI must be killed within 6 and a half minutes..