I really dont think that it could be that hard. Say your on a mission and you assualting a camp. you see like 3 tanks just sitting there full of guys and you got like 3 squads. You hit map hit " Call for Spectre support" or somthing like that and click the area on the map and it rains down a set amount if fire from each gun. Now that would be awsome. and it would definatly rain some serious hell on Multiplayer