xp balance on mission, etc. and new gas and xp purchase
It looks like the xp increase was around a 10% bump up for mission and walkers on the wall. I don't think that this is enough to fix the unbalanced xp economy. I was not impressed by the x2 xp and limitless gas being a cash feature instead of with gold. They are inexpensive, but make the game a sinkhole for money once you go that route. Even if you just do it 1 day a week, it will be $5 a week forever as the mechanism for balance. I prefer a game that you just pay one time and then you are done to this kind of "free" game I think.