Remember that awesome pulse rifle we saw in the trailer, Outbreak Prime? The one that looked like Dennis the Menace took artistic licence to the Sleeping Simulator? Members of the community have collaborated to successfully compile and analyse the elaborate method to obtain Outbreak Prime. The exotic raid weapon is obtained through a series of obscure tasks and objectives. The good news is that currently it drops at the max damage cap of 390 and when it attacks an enemy repeatedly, it releases SIVA nanites which attack other enemies. Fallen take bonus damage. Below is probably one of the easiest videos to follow pertaining to the exotic. Kudos to the community for figuring it all out so quickly.