
4th Horseman + Nightfall = Death. *Vid* (Destiny)
Wanted to cap a quick vid of the Horseman versus the Spider Tank, but had so much fun that I wanted to make a quick highlight reel of the run (although you can skip to 1:45 to see the Tank). The Horseman's DPS is definitely something scary: it takes two shots to bring down the Spider tank (correctly aimed), and they're pumped out in under half a second. Taniks fared a little better, but not much. On my next two runs, he didn't even make it out of the gravity lift during the first encounter (at one point kidnapping Sammy when he left).
The only catch is that at that range, you die every time. Fortunately the game auto-revives you, so it's worth it.
[gifvfull]http://i.imgur.com/Xw4tuuq.gifv[/gifvfull]
(Sorry for the crap quality/scale gif)
"This is not a holdout weapon, it's a pathfinder."