Quote Originally Posted by waithuhwhat View Post
I'm pretty sure the ammo only drops from DM II and not the single Ark Angel fights
...which is why the website the OP got the 1% figure from is not a reliable source for that information. It doesn't differentiate between the two fights (in fact, it may even include the original Ark Angel battles), and it doesn't take into account that the drop rate increases significantly when the difficulty level goes up.