You can easily obtain this trophy alongside the
The Stick Around trophy in Crysis 3 worth 34 pointsSingle Player: Using the Predator Bow, pin 10 enemies to walls with arrows
just by doing what's necessary.
In order to pin an enemy, hold
whilst you have your bow equipped, and change the Draw Weight to "Strong Draw Weight", and make sure you're using the "Carbon Impact Tip". Now, when you have an enemy in your sight, preferably one infront of a wall/object, pull down
so your character pulls the arrow completely back, then fire away.
Now all you need to do is go up to their body and retrieve it. You know you've done this right because if you've pinned an enemy with an arrow, you will need to press
to retrieve it, where as if you didn't pin them, you just walk over it.