This new game mechanic it would be a market where people could sell Aircraft,Soldiers,Naval ships,Missiles,and Nuke. To balance this when you get rid of things like how we do now you would get half the resources that you paid in with back. and to balance the nukes and missiles, If you don't have the infrastructure to build missiles or nukes, Then when you used them there would be a 50% chance that it would veer off course and hit your biggest city.I believe this feature would  level  out the pri