This is so cool! I can't wait to see all your responses. I'm about to sleep now, so I will think on my answer and post them tomorrow first thing while at work. :P

Instead of 30 days however just one post with all 30!  And I'm adding a 31 favorite Trek parody.

A C E

:)

B (that's one sexy Nausicaan, rawr!) and D 

Because all of these look so good, I'm voting based largely on the reasonings given for the design in addition to what, in my opinion, is the most important uniform element--a clearly visible distinction between the 3 tracks. 

On the battlefield, being able to tell at a glance who can patch up your wounds and who would be better patching up a turret can mean the difference between a glorious victory and a swift entrance into Sto-vo-kor. 

Thus, my choices are: H, F, and C

(also congrats to H for managing to use the same system as DISCO without letting Tactical and Engineering be so indistinguishable that I physically can't tell them apart) 

D

A

B

:-)

A B D

Editorial note: I would like to register my displeasure with the voting administration for removing the third photo in my entry that shows what my uniforms looks like in their complete form. You're horrible people and should be ashamed.

All look amazing!  D B H are my choices.

D A C

G B H!

D F G

D as it's pretty much what I'm wearing

A 

C

D B G

D E C 

Great work to all designers! 

A D E

D  F  H

Good luck to the designers.

BCG.    Luck to those who entered.

A C E.

EDC

A D G