Please note, this pack is for players who have NOT unlocked any of the advanced frames (classes) already.
If you are like me and have multiple-class-disorder and find yourself switching between characters constantly, this pack is great because it eliminates the end-game grind to unlock all of the advanced frames. This can, however, take away part of your end-game in that you're no longer working towards unlocking that next advanced frame, so think about how you want to play.
It is 100% unneccessary and you can unlock all of the frames just by playing the game. I love that there is no logging out and back in to change characters/classes: it's all done on your one character with the different battleframes, so this pack was really great. Now I can switch all I want and level everything up whenever I want.
If you're thinking of purchasing the frames individually, this is cheaper than buying them by themselves plus it gives the other bonuses. The jeep is just gravy since you get motorcycles in the game, but it is a blast having a buddy ride shotgun.