I have just recently beat all four campaigns and I went back to play Leon's again on a different difficulty. When doing so, I was asked whether or not I would like to use the weapons I'd obtained from my previous game. Of course I would love to use these weapons, but I didn't know if there was a downside to using them (i.e. no credit for achievements, etc). The same question goes for the unlimited ammo skills that you can purchase after beating all four campaigns. Is there a downside to me using them? There doesn't seem to be any information anywhere on this and I'd like to find it out before I start playing again, since I would probably grab my old weapons, grab the unlimited machine gun ammo, and just saw through things if there is no downside. Any info you guys can provide would be greatly appreciated, thanks!