So, to make a long story short, I was using Assassin's Cowl in GMs, someone suggested putting on Special Finisher, thought it was a good idea, but couldn't find it. Today I go into my mods section, look for it, except, uh, it's not there despite being "unlocked by default." I've seen people talk about finishers from Banshee for a quest, and The Ordeal Nightfall Quest, but I can't do either-- hell, the latter has the emblem for it waiting for me at Zavala, but I can't do anything with it. It says I need "Nightfall: The Ordeal Rank 1". So am I just SoL? Or is there something I'm missing? Seriously, any help would be appreciated. (P.S. Attaching an image of said emblem. Ignore the reputation rank with the vanguard if it means anything for this, I put all my tokens on my Hunter so far.)