Well, I got a couple of days off from training so I thought I would finish up a concept that I have been working on and off on.
Here is the insignia for the 501st Legion, 1st BN, 1st Infantry. The division was formed near the end on the Clone Wars and based on Courscant. One of their first missions was to assist Lord Darth Vader in carrying out Order 66 at the Jedi Temple. Since then, the 501st Legion 1st BN 1st INF has been detached to Lord Vader as his "personal" Infantry division under his direct command.
This insignia was adopted for the unit just after the formation of the 1st Galactic Empire and the formation of the Imperial Army, replacing the GAR at the end of the Clone Wars.
http://viperaviator.deviantart.com/gallery/#/d383860After several unsuccessful attempts, I finally decided to utilize the distinctive blue helmet triangles seen in ROTS as the basis for the insignia, just like I did for the 501st Imperial Navy Fighter Group. The answer was staring me in the face this whole time and I never saw it until now DoH (LOL). Any comments are always welcome!