In short, in EU and EW, when an enemy pod (cluster of enemies of the same type, like 3 Sectoids travelling together) is spotted, they get a free movement phase. You can adjust how many missions it takes to grant you medals and how many you can get, for if you want fewer or more than the default amount, more of a nice thing to have than an essential mod. Cornering the Medals Market for Enemy Within. You can sort of mod the game using the Patcher GUI found here:
