The Zig map also transitions. Which has garnered me a couple complaints from players that couldn't find a boss. And this confused me since I thought most people would have played through Breakout at least once 
.
My 50s:
Prime Minister MA/SR Scrap - Protector
Captain Hit-Guy DM/Reg Scrap - Freedom
Prime-Minister ILL/TA Troller - Freedom
Ultimate Minister Inv/SS Tanker - Freedom
Breakout starts at the other end though. Most people bust out of prison and never look back 
Eva Destruction AR/Fire/Munitions Blaster
Darkfire Avenger DM/SD/Body Scrapper
Arc ID#161629 Freaks, Geeks, and Men in Black
Arc ID#431270 Until the End of the World
Good point. After all, why would a criminal want to remember prison?
My 50s:
Prime Minister MA/SR Scrap - Protector
Captain Hit-Guy DM/Reg Scrap - Freedom
Prime-Minister ILL/TA Troller - Freedom
Ultimate Minister Inv/SS Tanker - Freedom
Warburg Malta Base is an interesting transition map. Very inobvious though.
Is the transition from sewers to caves map (from the "Defeat all Tuatha in sewers" Croatoa mission) available in the Architect? I can't find it anywhere.
I'm looking to use transition maps to give the effect that my arc is essentially taking place on a single map, without making it repetitive. What transition maps are there? So far I've found:
Office to caves
Office to sewers
Office to Rikti
Caves to Rikti
Am I missing any?
Eva Destruction AR/Fire/Munitions Blaster
Darkfire Avenger DM/SD/Body Scrapper
Arc ID#161629 Freaks, Geeks, and Men in Black
Arc ID#431270 Until the End of the World