ro2 is great but it's not the most accessible game
64-player servers are really amazing to play on imo and all of my experiences in the game come from those
that said, if you're gonna play on those, you gotta keep in mind:
you will die. a lot.
you will not see how you died. a LOT.
you will probably not kill a lot of people.
the role you choose tho will heavily affect this one:
you may or may not wind up staying in one spot for a very, very long time, just keeping track of one spot.
i still find the game super fun, though
its great
that said, if you want suggestions, you should probably also specify what kinda games you like/what genre
cos the steam store is a pretty huge place and it's hard to suggest stuff without knowing that