Counter-Strike: Global Offensive is another part of the game series called Counter-Strike. One of the most popular weapons in this game is MP7 - a submachine gun, the best choice for the players who prefers to use silenced weapons. It was painted with blue color with water drops as template. Exchange your Soul Gems for MP7 Groundwater. The MP7 is a submachine gun made by Heckler & Koch. It has a high rate of fire and low recoil, making it very efficient in close quarters combat. This spray is based on the Groundwater pattern, which consists of dark blue and light blue colors. Exchange your Soul Gems for the MP7 | Groundwater.