Sturmgewher88mm
Kaiser
As long as you have your warrior, you can delete your settler without losing (I think it's a mechanism set in case you lost the settler to a barb/civ on the first turn). As Germany, you just loot barb camps and start building up an army.
Use your imagination...try it and see what happens
[I think the idea would be to try to gather as many warriors as you can from Barb camps ....and you might even get a few lucky upgrades from ruins..... Potentially I guess you could have a sizeable army ....and, I'm guessing here...because you have no city, there would be no expenses.... You might even be able to take over another city...though it might be tough.
The biggest problem would be getting cornered and having your first one or two warriors wiped out.....]
Precisely
While you don't have to pay unit maintainence, you can't select SPs (no bonuses for your army), although you still amass
gold, 
culture, and 
faith (and possibly techs from ruins). This playstyle is extremely difficult even on settler difficulty 
