Reanimal Non Cannonical is a trophy you can earn in Chapter 6: Nobody Left Behind. This bronze trophy is easy to miss, but this guide will tell you exactly how to find the secondary target and fire at it with the cannon.
How to Unlock the Reanimal Non Cannonical Trophy
The cannon section is a mandatory part of Chapter 6: Nobody Left Behind. Start the chapter, discover the old bunker, and solve the cannon puzzle to spawn the ammo crate. You might also want to solve the optional bunker puzzle to unlock the Secret Bunker trophy and collect one of the 20 Reanimal posters needed for the A Proper Gander trophy. Once you solve the cannon puzzle, an ammo crate will be waiting for you next to the cannon. Complete the boat section and reach the island with the cannon.
How to Shoot a Secondary Target with the Reanimal Cannon
Dock the boat on the cannon island and disembark. Notice the ammo crate nearby. Pick up one shell and carry it through the cannon door. Interact with the wheel and watch your partner pick up the shell and place it in the cannon’s shell slot.

There’s a button on the wall next to the door. Go ahead and press it. The next step is to aim the cannon turret at the target.

Interact with the big wheel to move the turret and aim the turret towards the bunker. The aim box is pretty big. As long as the bunker window is in your field of view, it should work.

Let go of the wheel and interact with the two levers to fire the cannon at the bunker. The Reanimal Non Cannonical trophy will pop after the cutscene.