Rodent x0Plague team together my role is Plague Bearer.
If you want to find out what any role does you can run $id <role name> or ;<role name the first one will stay in the chat permanently whilst the second one will disappear after a few minutes. There is also $i but that doesn't give the full info on a role.
The win-con for our team is to infect every player and be the last ones alive. Once a player is infected they will die after the second night of being infected, so it is important to try and stay alive for as long as possible to give ourselves the most time. To do that it is important to have good fake claims so that we are capable of surviving that long.
I would recommend that you discuss with your mentor @Janitor Dan on what role you'd like to pretend to be, I find it's good to choose at the very start as it makes it easier to fake once it comes time to claim (there is usually a person that gets confirmed in some way and everyone then claims to them). Since you are the Plague Carrier I would advise claiming Assistant or Citizen as those are usually the toughest roles for town to figure out which are real and which aren't.
Also sorry for such a long message right off the bat.