armour army bullet Camouflage eye face gun gun barrel helmet marksman military sharp-shooter sight sniper sniper rifle soldier telescope training uniform weapon aim black kill rifle shadow shape silhouette target white airsoft machine marker paintball shotgun war hit hitman hunt killer pistol play shoot shooter sport woman women abstract architecture armed armor backdrop background battle brick brown cement combat concrete design detail forces gray grunge human male man material natural nature officer old paint pattern people power rock rough special stone structure surface texture urban wall wallpaper warfare