Where do you get Continuity Mod ?

[LadyKappa]

I've been farming General sargas ruk for continuity ( as mentioned in the wiki ), went thru 20+ run but still no result, so is there any place to farm continuity easier ?

[Sinwars]

Corpus Tier 3 defence or spy missions, you can get it as reward from those, also void canisters, run around destroying them all including the treassure rooms.. Dont know if it would work but you could try the dark sectors on the higher corpus planets

[CxLL]

While the Warframe wikia isn't completely clean of datamined information, it is still the best possible source for finding drop locations of all items obtainable by playing.
For example:

http://warframe.wikia.com/wiki/Continuity