Imposing Gunner Skulls

This is a simple retexture mod that replaces all of the game's graffiti Gunner skulls with emblems that appear more imposing and threatening. I've always been under the impression that the Gunner logo looked goofy simply due to how cartoonish the skull appeared, so while this may not be the most lore-friendly mod it'll improve the atmosphere in Gunner-controlled zones. This replaces all 4 decals, Gunner barriers, and the Gunner combat chest-plate emblem.