No one's forcing you to pay a penny to play this game... there is a LOT of stuff you can do without buying a parts pack, and plenty of great weapons you can customize your tank, and enemy tanks with. Sure, some stuff is held back, but that's how Hero Interactive makes their income. The packs are incredibly cheap too, it's not like you're paying $60 for a console game. So please, don't complain about parts packs, some of us appreciate them, and I like knowing I'm supporting a company I've been following for several years.
For those who want to play the real FFR, Tasslefoot has made a backup website, which provides a link to a full version of FFR. That being said, you can't create accounts and such, but all the songs are unlocked, and playable. http://ffr.lightdarkness.net/