Well, other then that, there are no other Red maps... But there are some other maps made by the Oostrum bros. that have a similar feel to them that you'd probably like... :^
Specifically this one:
http://dukerepository.com/maps/Anoth..._Base_Attacked
And, while this one has a different visual style, there are design aspects that make this an obvious Oostrum map;
http://dukerepository.com/maps/Alien_Planet_X64-2