The small detachment that you create in Survive Squad will have to fight for survival, and in order for the struggle to be successful, you will develop a strategy and provide the detachment not only by fighters and weapons. Before each battle, you need to replenish the arsenal, and the combination of two identical types of weapons, ammunition, protective equipment and treatment allows you to increase their level and make them more effective. The better your fighters will be equipped, the more chances to win and the longer your detachment will last in Survive Squad on the battlefield.