I just played the Follow the Liter Mutation on Left 4 Dead 2 and I wanted to tell you a little about it. First, I want to say that Valve has been doing great trying to improve the game. Over the past two weeks or so, they have been bringing out new Mutation series which is great. And follow the liter is just a version of Scavenge mode where in this case you get one gas tank at a time, which is pretty good.
I just played it and I liked it. Although it’s not as exciting as regular scavenge mode so I doubt I’d play it regularly if they turned it into a regular game play mode. But it is fun and I’ll probably play it again once or twice before the week is over and they introduce another mutation. If you have L4D2, I’d recommend you try it out, you might like it.