1. Main material is a metallic paint with tiny camouflage textures in base, metal and metal coverage to create subtle flakes.
2-3 For the more visible flakes, three metal materials has been layered on top. Two with red hues and one white. A opacity map consisting of a black/white camouflage texture mixed with a black/white color gradient has been applied to each metal material to have the different flakes be visible at different angles.
Thanks. No remapping has been done for the final renderings. The short and fast zooms at e.g. 0:08 is done in post, though.
I used remapping when working with preview renderings to get the timing right. When I has satisfied with that, I adjusted my KeyShot animation to reflect it. This way I only had to render out the exact number of frames needed in high quality.