This Seeking Tech guide will explain how you can get the Bring Out the Big Guns trophy and achievement in Resident Evil Requiem.
This will unlock when you “stun the Girl with Requiem.”
The first opportunity to do so is in the basement of the Care Center. If you missed the chance, then you can shoot her with the Requiem again at the Water Treatment Plant. The latter area has extra Requiem ammo near the save point in case you need any.
Check out a video below to see how you can get this trophy and achievement: