Where Do We Get T4 Keys? Mag Prime Chassis Drop Rate Is Too High...

[(PSN)qwerty1310]

Where do we get t4 keys? I really wanna start farming there because it seems like a good place to farm...btw the drop rate of mag prime chassis blueprint is too high! I went to t3 exterminate 3 times and I got 2 mag prime chassis blueprints and one forma...

[BrotherIcarus]

Interception missions give T4 keys. 

[at35z]

Interception missions give T4 keys. 

 

Especially the higher levelled ones. Try Pluto to make it sure.

[(PSN)qwerty1310]

Kk ty I will do that tomorrow

[Trichouette]

from the wiki:

 

T4 Void Keys are here! You can find them in Interception missions across the Solar System in the following way:

• T4 Exterminate, Capture, and Mobile Defense keys can appear Round 3 or later on ‘Medium’ Interception missions (starting enemy level 10-20).
  • ALL T4 keys are dropped in Augustus Mars, however, T4 Mobile Defense tend to drop more frequent than other keys.
  • T4 Exterminate is often rewarded from Berehynia (Sedna), with T4 Capture also possible.
• T4 Survival, Defense, and Interception keys can appear Round 3 on Viver (Eris), Draco (Ceres) and Cerberus (Pluto) or later on ‘Hard’ Interception missions (starting enemy level 20+).
  • T4 Interception is rewarded from Viver (Eris). (Needs further testing)
  • T4 Survival is rewarded from Draco (Ceres). (Needs further testing)
  • T4 Defense is rewarded from Cerberus (Pluto). (Needs testing)

[-AR.D2]

•  
  • ALL T4 keys are dropped in Augustus Mars, however, T4 Mobile Defense tend to drop more frequent than other keys.
  • T4 Exterminate is often rewarded from Berehynia (Sedna), with T4 Capture also possible.
    • T4 Interception is rewarded from Viver (Eris). (Needs further testing)
    • T4 Survival is rewarded from Draco (Ceres). (Needs further testing)
    • T4 Defense is rewarded from Cerberus (Pluto). (Needs testing)  

 

You should have noted this particular part is baseless conjecture from the wiki comments.

 

As far as I can tell, there is no single mission that has a higher percentage in dropping a particular key.

Edited September 13, 2014 by Deetwo