It's quick to learn the basics, long to master. That shouldn't be a gripe, though. I've been able to sink probably about four-hundred+ hours of gameplay into this game after all's said and done and I'm still finding ways to do neat, new things.
I advise logging in to a singleplayer game and shooting for a few achievements to get yourself acclimated to the way the game works, then joining a server after you get used to it.
SW-5120-1900-6153