Mark of the Ninja

I didn't find a good spot in the DLC to do this, so I did it on A Blade At His Neck. The first thing you have to do is get two keys. The first one you come across is surrounded by two guards. Get in the vent above him and toss the fungal spores down. Neither guard will panic, but they'll come closer and inspect the body. Done.

Much quicker spot to do this in with the first 3 guards of the game.

Replay the very first level and fungal spore the very first guard. Drag body and then throw into the two guards walking your way.

Load up the level A Blade At His Neck. When obtaining the first key throw fungal spore at the yellow guy slightly to the left a bit

and that's it achievement unlocked

Level: The trial of shadow

Needed: Fungal spores, smoke bomb.

When: Near the end of the level you will steal a tracking device, when you do this an alarm will go off and a group of guards will head straight to you.

Grapple up and hide in the vent, when they group below you throw a smoke bomb into the group and while they are stuck throw the spores into them.

You should have at least three enemies together this way so the spores will kill one and then the trap spores will kill the other two.


Note: There is a checkpoint right before stealing the tracker so if you don't get it just reload the checkpoint and try again.