Good Morning! Please I need help! my XBOX one account is "RODRIGODUO58" and every week I do the Iron Horse Raid from start to finish! And the "The Ravenous Exotic Rifle" weapon, no "drop" please, you can help me, this is making me extremely anxious and with no sleep, because I keep doing it over and over and every time I do not "drop" the gun, I feel very sad, please! help me, increase the chance of drop, or another way of doing it, because I really feel really wronged.
I'm sorry to hear that you have not received the Ravenous Exotic Rifle from completing the raid. Unfortunately it does not have a 100% drop rate so you would not be guaranteed to receive it.
You could also have a chance at receiving it in the weekly exotic caches.