The common goal is what supports my thread. I can only find one problem that would have to be adressed. If there are multiple tanks opperating in a relativly small area, and the triangles don't shrink enough, then you will just see the general are squaddies are in not there location. If you are going for that then ok, but if they are spread out, but close enough that the triangles blend together then you have accomplished almost nothing.
Well two actually. If you make it so that you can pinpoint a squadies EXACT location then that would be unrealistic, and you could warn him if planes are coming at him and not his general area. Or whatever, I'm sure someone could come up with an exploit.