In Metal Gear Solid Delta: Snake Eater, to unlock the Groznyj Grad Weapons Lab East Wing 1F Western Door on Normal difficulty, players should use the radio frequency 145.86. It’s important to note that this frequency becomes available only after a specific point in the game, such as after the protagonist has undergone torture and returned to base. For players engaging in the game on different difficulty levels, the frequencies will vary slightly; however, they will remain in close proximity to 145.86 on Normal.

Additionally, there are alternative methods to access the armory without needing to use the radio frequency. Players can equip Raikov’s officer uniform or follow a scientist who has opened the door. It’s crucial to remember that entering incorrect frequencies, like 149.53, will not unlock the door but will only produce radio sound effects, thereby underscoring the necessity of using the correct frequency to gain access to the Weapons Lab.