Puzzle Help

[blocknight]

Code: BBBA aa AA BBB BBBBAAA BBBBBA a

if BBBA is k, what does the code translate to? (should be a 7-character passphrase)

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[Katadeus]

I am having ideas and they are dumb
hm

[Moriarty]

well my ideas are
a = 1
A = 2
B = 3
3+3+3+2 = 11
k is the 11th letter of the alphabet
kbdirqa
dumb but atleast its something :-)

[blocknight]

well my ideas are
a = 1
A = 2
B = 3
3+3+3+2 = 11
k is the 11th letter of the alphabet
kbdirqa
dumb but atleast its something :-)

this is the part that befuddles me, that's not the answer.
vital info is here: http://pastebin.com/eCpaWYW8 (creator used a bacon cipher in the last round)