Obtained all weapons (excluding weapons obtained via password).

Discounting the weapons that are attainable via passwords, there are 65 weapons that are required for this trophy. Most can either be found throughout the game or be purchased from Drebin, though a select few are obtained through special methods. All required weapons can be purchased from Drebin at a certain point in time, with the exception of four weapons: Chaff Grenade, Sorrow Doll, VSS and XM8.

• Chaff Grenade: There are four locations for the Chaff Grenade: Inside the Containment Facility in South America (Act 2), inside the Marketplace in South America (Act 2), inside the Sewer area in Eastern Europe (Act 3), and on the helipad on Shadow Moses Island (Act 4).
  
• Sorrow Doll: Obtained during the fight with Screaming Mantis by shooting it out of her left hand (blue glow).
  
• VSS: Can be found in the left side of the Confinement Facility in Act 2, inside the building next to where the Rebels are being help captive.
  
• XM8: Can be found after meeting Drebin for the second time (Power Station, Act 2), by taking the left path - it is underneath a collapsed mine shaft.