Rogue One: A Star Wars Story will feature stormtrooper designs we haven’t seen before — designs like the shoretrooper. Their distinct armor was on display at Celebration Europe and San Diego Comic-Con. It looks a bit like the scout trooper design, but the colors are different to match the environment the armor is used in. Replica Props Forum (RPF) builder jimmiroquai, a.k.a. Jim Tripon, used the limited reference material available and constructed a shoretrooper armor set over the last few months.
He started with paper templates for the armor and by sculpting the helmet. The bucket shape is varied enough that it had to be crafted from scratch. You can see the beginnings of the helmet below. Since it’s such a new character, he had to come with the various hard pieces on his own without using a kit.
Get all the build details and see additional photos in this thread at The RPF.