To unlock the Front and Center trophy in Sniper Elite V2 Remastered, you will need to get a scoped headshot on an enemy from 150m+.
A good spot to unlock this trophy is on the Schöneberg Convoy mission. As you start the level, silently take out the soldier stood leaning up against the wall, continue forward a little bit and you'll see two soldiers directly in front of you. One is patrolling the area and the other is stood near a motorbike.
At the far end of the street, there is a sniper on the roof. Take him out and the trophy will unlock.
You can see a video showing the exact location below (credit to 360GameTV on YouTube):