u can use ur character in every guildwars game and expancsion (eye of the north) just that factions has 2 classes that nightfall doesn't have ...and nightfall has 2 classes that factions doesn't have.
RP is when u go on doing storyline , questing , dungeons well etc and even PvP ... and PvP is just only PvP ... u go on killing other peoples in teams or singlei would suggest to go RP because u can also go PvP and do everything else ...




and nightfall has 2 classes that factions doesn't have.


