Charged Shell

[Jin]

Has anyone gotten Charged Shell "recently" and remember exactly which mission you got it from?

Warframe wiki lists the mod drops off Corpus faction. So I have been farming Corpus defend this entire week, but I still haven't seem any drops. This leads me to think that it was drop off Corpus "before" they mess with 2.0 table.

I had so many Charge Shell mods before but I never keep any extra. Now when I am trying to get another one for my pet SG and it just wont drop. Irony isnt it? =/