STAR WARS Jedi Knight II: Jedi Outcast

This is story-related and cannot be missed, as you must destroy an AT-ST to progress through the story.

Your first AT-ST will be on Mission 5 – Artus Topside. They are a beast to kill without heavy weapons and Force powers; however, luckily for you there are seated laser turrets you can use to easily dispatch of them. After you have destroyed your first AT-ST, the trophy will pop.