Century: Age of Ashes

In Spoils of War, there will sometimes be a random Vault-Breacher spawn in the middle of the map. What you need to do is pick this item up and transport it to the enemy base.
Now when you're hit by an enemy whilst holding this item, it does drop almost immediately. Taking this item to the enemy base honestly comes down to both a bit of skill and luck with your teammates. If you're teammates give you support, then chances are you'll make it to the enemy base without a problem. You can almost try outmaneuver the enemy attacks.
Either way, once the Vault-Breacher explodes at the enemy base, the achievement will either pop up right then, or at the end of the match.