Is there a guide for those already familiar with League who want to play some games in Twisted Treeline? I'm somewhat confused regarded the different items/meta. I've played a few games against bots and that doesn't really teach me anything.
What's confusing about the items?
Most common teamcomp nowadays is Fighter/Tank top, Tank/Fighter jungle, Mage bot. Support comp has a Tank support duo-lane top instead of having a jungler. Marksmen are weaker after the recent patch.
A basic strategy is to force down the outer towers quickly to open up the map and start invading the enemy jungle. Pushing out minion waves and roaming to the jungle or other lane is more common than in SR due to the smaller map size. It's even more common once the outer towers have fallen. Waveclear is generally useful to have on a team.
Unforunately, there aren't really many resources for alternate maps, much less updated ones. You can try asking/searching around the TT subreddit for more/better information.
My advice to you is to not play this map. You will become addicted to it and then realize that it is broken beyond belief because Riot doesn't give two shits about it. It's really sad for those of us that prefer it over SR :(
