So I was grinding to get my characters ready for the 20th a sidearm that I never knew about showed up after I decoded an engram. I tried it out and WOW the stats are nuts for a sidearm - it's like a mini fusion rifle without ANY noticeable kick. I'm not sure if it matters but I was doing the Brothers strike with my Titan and my Cryptarch lev is 97. If you get a special engram take a chance it's worth it.