This Seeking Tech tutorial will show you how to acquire the Friendly Fire trophy and achievement in Metal Gear Solid Delta: Snake Eater.
For this to unlock, you need to “call in fire support.”
This can only be done in the following locations and difficulty modes:
- Bolshaya Past South (Easy, Normal, Hard and Extreme)
- Bolshaya Past Base (Hard and Extreme)
- Ponizovje West (Easy, Normal, Hard and Extreme)
- Ponizovje Warehouse: Exterior (Easy, Normal, Hard and Extreme)
- Ponizovje Warehouse (Easy, Normal, Hard and Extreme)
- Graniny Gorki Lab Exterior (Easy, Normal, Hard and Extreme)
- Svyatogornyj West (Easy, Normal and Hard)
- Svyatogornyj East (Easy, Normal, Hard and Extreme)
- Krasnogorje Mountain Base (Easy, Normal, Hard and Extreme)
- Krasnogorje Mountainside (Easy, Normal, Hard and Extreme)
- Krasnogorje Mountaintop (Easy, Normal, Hard and Extreme)
- Zaozyorje East (Easy, Normal, Hard and Extreme)
In these locations, you need to look for a specific soldier and then interrogate him until he gives you the frequency for fire support. You then need to call the frequency on your radio to unlock the trophy and achievement.
You can find a video walkthrough for the Bolshaya Past South location, which is your first chance to unlock Friendly Fire, below: