1980's US Tank Company info

[Embis]

I am designing a scenario for a 1980's  Soviets against Nato game set during the early days of a Soviet invasion of West Germany.

In lightly wooded undulating terrain, what sort of frontage would a US army Tank Company be expected to cover? 

I have a sketch map which gives me the approximate positions of all the elements but there is no scale so I cant be confident my map is going to be scaled correctly. If I have an idea of what distance a Tank company in a defensive posture might be spread over I can make more sense of the scale of my map.

I had some US Army field manuals once, cant find the dam things now!