Where Is The Best Place To Find Tower 4 Capture Keys?

[PresidentPorpoise]

I can't seem to find any Tower 4 Capture Keys. Can someone please tell me where they can be farmed?

 

[Taikaponi]

Interception missions after round 3.

 

Quote from U13,7 topic:

 

• 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).
• 
  
• T4 Survival, Defense, and Interception keys can appear Round 3 or later on ‘Hard’ Interception missions (starting enemy level 20+).

Edited July 3, 2014 by Taikaponi

[PresidentPorpoise]

Which interception missions?
 

[Taikaponi]

Which interception missions?

 

 

Ones with level 10+ enemies.

Edited July 3, 2014 by Taikaponi

[roob]

I think I was doing Augustus on Mars for the lowest medium ranked intercept missions. 

Edited July 3, 2014 by roob

[J-Reyno]

Try Stephano, Uranus.

[PresidentPorpoise]

thanks