Helljumper FeetFirst + Seeker Intrepid, then make the armor a Cerise or Raspberry for the primary and something like Grimace or Cerulean for secondary, finally stick Torchbearer onto the visor. For bonus points, use the At the Ready stance and rotate it to show off the Assault Rifle as clearly as possible then stick Last Slice, Pop Culture, or EHH, ARR onto it. Finally, jump into FFA or Firefight and watch as people flee in horror from your hideous appearance.
I donned this look for April Fools and got some laughs (Or more frequently, shrieks of terror) from my friends and company XD
On a more serious note, here's some combos I jotted down that I enjoyed using: