Talk:Barrel Diffusion/@comment-15323193-20130820141206

my friend and I have been having the same recurrence of getting this mod in defense mission

(need confirmation though)

if you do defense mission and found streamline as one of the reward for the wave, there's a big chance that barrel diffusion will show up later on.

My friend had like 3 or 4 recurrence, and today I found this at wave 25 xini after a wave 10 reward of streamline