Siren Alley: BioShock 2 Weapon Upgrade Station. It’s somewhat hidden you will have to figure it out carefully where it’s located in a locked and gated room of the Mermaid Lounge, on the bottom floor. With the turret just head down the hallway and boom you are on the spot. You will easily figure it while walking towards the apartment when you look through the hole in the wall. On the second floor of the Sinclair Deluxe, you will be able to spot this weapon upgrade station. Pauper’s Drop: BioShock 2 Weapon Upgrade Station. This office is located near to Grace’s dressing room. The next upgrade station is in the office of the Limbo Room. This weapon upgrade station is located exactly a little before the staircase when you are on the way to R.
