Haha yeah, to be honest I was annoyed mostly because that hub thing, overall it's nice idea but I though that it will only cause problems to jj2. I will try to get those achievements to work anyway, and if not, then I've got another idea.

What do you think about idea of getting ammo ONLY at the hub level before you go on the mission? You know, something like few ammo crates locked up by triggers which unlocks after you finish one mission. That would be interesting for gameplay. Then, while playing normal levels you could only aquire things like fast fire, gems, carrots. Of course ocassionally we can add some ammo boxes("wait there, we will get you some ammo from our space station!" and then ammo box falls down from the sky).