How to Complete Watch Your Step

The objective is to defeat all foes and destroy all traps. The traps are already revealed, so there is no need to use a Ranger's Awareness ability or the Libra Clan Privilege.

The foes are two Berserkers, a Ranger, and two Vikings. The Ranger can set even more traps.

You can destroy the traps by stepping on them, or you can have Vaan use his Salvage ability to turn the traps into loot.