Honestly, the game lurches WAY too much when you're running on hills, it's overly frustrating. Because if the doom is right behind you, and you have to run up a hill, there's pretty much no chance of survival. It's a good game, but frustrating.
Gotta say, sometimes the enemy team gets a liiiiittle overpowered, and your teammates get a little dumb a lot of the time. Otherwise, this is a really good game, and that's why I haven't ragequit yet.
Only complaint I have is that it's not as much fun when you can't find a game with people the same level as you. Because it's a TAD difficult to do well when you're severely outmatched.