This one has been in the works for a while now, it's a realistic take on the Arc trooper helmet from the clone wars. This remix uses Killonious' amazing phase II helmet as a base. I also included the Rangefinder files from Lando3553 to complete the look of the helmet. The bulk of this project was completed using Meshmixer. The file may not be 100 percent stable but it should be printable with no problem. If you do make one for yourself, post a make!
Cheers :)

Here's a link to all the amazing files I used:
https://www.thingiverse.com/thing:2718242
https://www.thingiverse.com/thing:4251332