[quote]I'm not sure of what's available honestly for my class. I don't feel like I have much armor. I'll have to check my collection to see what's still available[/quote] Check your Collections in the vault, like you said, and then do a Google search to see all of the possible exotic armor and non-quest weapons you can get in the game and compare them and that will show you what you are missing. I believe you have all the non-quest weapons and all the armor for the class you claimed the Fated Engram with or it wouldn't have decoded into something you already had. If you are missing armor with any of your other classes, I suggest using them to claim future Fated Engrams until you have all of those armor pieces also. That is what I did.

Those are only obtained by completing the respective quests. They cannot be obtained from Fated or Exotic engrams.

[quote]Legend of Acrius or Rat King would be nice. I'm a solo player so I don't get much opportunities to get these weapons[/quote] Legend of Acrius and Rat King are exotic quest rewards and you cannot get them from Fated Engrams, as I stated "exotic weapons that [u]do not require a quest completion[/u]". That also rules out Sturm and Mida Multi-Tool. You can only get those 4 weapons from their respective quest completions.

they won't drop because you haven't done they're respective quests. do the grind, they both have very unique perks.