One of many interesting mechanics in Metal Gear Solid Delta: Snake Eater is using the radio to call in an airstrike on enemy positions. These secret frequencies must be extracted from local enemies through vigorous interrogation.
This Metal Gear Solid Delta: Snake Eater guide lists every single Fire Support frequency for each of the various difficulty levels.
Very Easy & Easy
- 140.73: Bolshaya Past South
- 145.28: Ponizovje West
- 143.89: Ponizovje Warehouse: Exterior
- 144.03: Ponizovje Warehouse
- 143.61: Graniny Gorki Lab Exterior Yard
- 144.93: Svyatogornyj West
- 147.04: Svyatogornyj East
- 143.98: Krasnogorje Mountain Base
- 144.39: Krasnogorje Mountainside
- 143.56: Krasnogorje Mountaintop
- 149.06: Zaozyorje East
Normal
- 141.62: Bolshaya Past South
- 142.12: Ponizovje West
- 147.32: Ponizovje Warehouse: Exterior
- 148.56: Ponizovje Warehouse
- 146.74: Graniny Gorki Lab Exterior Yard
- 141.31: Svyatogornyj West
- 149.29: Svyatogornyj East
- 145.68: Krasnogorje Mountain Base
- 147.90: Krasnogorje Mountainside
- 140.09: Krasnogorje Mountaintop
- 146.33: Zaozyorje East
Hard
- 147.23 : Bolshaya Past South
- 148.63: Bolshaya Past Base
- 140.36: Ponizovje West
- 144.19: Ponizovje Warehouse: Exterior
- 142.91: Ponizovje Warehouse
- 149.84: Graniny Gorki Lab Exterior Yard
- 141.79: Svyatogornyj West
- 142.86: Svyatogornyj East
- 149.52: Krasnogorje Mountain Base
- 149.12: Krasnogorje Mountainside
- 142.29: Krasnogorje Mountaintop
- 148.31: Zaozyorje East
Extreme
- 146.14: Bolshaya Past South
- 148.17: Bolshaya Past Base
- 143.20: Ponizovje West
- 148.98: Ponizovje Warehouse: Exterior
- 140.22: Ponizovje Warehouse
- 147.82: Graniny Gorki Lab Exterior Yard
- N/A: Svyatogornyj West
- 145.80: Svyatogornyj East
- 141.03: Krasnogorje Mountain Base
- 146.46: Krasnogorje Mountainside
- 145.99: Krasnogorje Mountaintop
- 146.82: Zaozyorje East
Note that despite knowing the frequency and it remaining exactly the same, you must perform an interrogation that yields the frequency each time in order to successfully call in the airstrike. This peculiarity even applies if you leave the area and come right back.
Calling a Fire Support frequency at least once will unlock the bronze trophy/achievement “Friendly Fire”.
Those are all of the secret Fire Support frequencies for every difficulty setting in Metal Gear Solid Delta: Snake Eater.
