The first thing you want to do before ANYTHING else is to either fly your own Reaper’s Emissary flag, get a friend to fly theirs if you don’t have your own, or (if you are going solo as a beginner and can’t do either) you’ll need to grind up to level 5 in this faction to purchase the Reaper’s Emissary Flag from the Servant of the Flame at The Reaper’s Hideout for 20,000 gold. Thing is, like the other alliance flags, this is one of those “spend a little to make a lot” moments, and you’ll make that gold back EASILY. You can vote for the flag right at any outpost by searching around for a caged skeleton or from the Reaper’s Hideout next to the Servant of the Flame.
Once you have the flag flying every player on the server will be able to see your ships whereabouts from their ships map, so keep in mind that sneaking around is probably not going to work well and you literally have a target on your back, so be sure to keep an eye out for approaching ships.