My main has full level 32 gear we get about 4 to 7 shards out of a full raid not to mention doubles of gear that I can shard so for xbox its going to be another 2 weeks or so be for we see a 32. The primary is a random drop from blades of crota knights it starts as husk of the pit and at eris rank 3 it can be upgraded to eidolon ally witch is what you see, then after you beat crota hard he'll drop a crux witch you need to upgrade it to an exotic necrocasum witch is the gun the hunter had in the trailer. Fist of crota farm for blades of crota knights just fly past everything black wax on and farm him till it drops.