I don't want to upset you, but you may be greatly overestimating the value of MS business. They just do aerial surveys, not actually clearing mine fields (that is where the money is). Their customers are the worst to deal with -- UN, NGOs and Governments. MS is using 10 year old technology. These days many companies have similar technology. Not even clear it works economically from fixed wing planes or helicopters. The blimp was a good idea, but even Branson gave up on that.