You can use the in-game Fireteam Finder or head over to r/Fireteams, www.The100.io, Xbox LFG system, DestinyLFG.net or DestinyLFG.com, or go to the Bungie.net recruitment forum (also available through ...

Win individual rounds within each match to gain Trials reputation. The amount of reputation you gain increases with each round you’ve won on your card. Earn enough reputation, and you’ll be able to ...