I heard TH was just "more of the same". While it added some things (split the squads of 4 into two teams of two each), they didn't really change much.
And as a side note, I uninstalled FSW. Not that it was bad, but the mood passed. And really, its a one trick pony. You set up and leapfrog your teams, kill the enemy, get to the checkpoint. One thing I don't like is how dumb your soldiers can be, and you have to babysit them sometimes. Its like...I'm ordering a squad to cease fire because the other squad is moving into that area ahead of them. Well they stop shooting, but one of the dumbasses keeps standing in the open and gets killed. When I tell you to stop shooting you should get your ass back behind cover like a normal person would do.