Way of the Warrior Trophy won't unlock
Make it to the outskirts of Halebidu in Chapter 5 without using a firearm or explosive.
This trophy requires you to never fire a weapon, not just avoid shooting NPCs. This includes never throwing grenades, and never using a mounted turret.
Additionally, you have to start a New Game and opt to NOT carry stats over when prompted whenever you attempt this Trophy.
Finally if you are not patched to patch 1.02, there is a bug that if a grenade lands next to you, it counts as a weapon fire. So make sure you patch up ASAP!