Does 4e change the viability calculus for a tank-centered campaign?

[Raellus]

Originally Posted by Green Monkey

How far away can someone hear an M1 driving, especially given hills, wood, other terrain. Scouting team on dirt bike often moves ahead of the truck which is towing the tank.

No first-hand experience here either, but I seem to recall reading in Team Yankee and/or Red Storm Rising that the Abrams' gas turbine engines are quieter than it contemporaries' diesel engines. IIRC, this feature was used as a plot point- a company or so of Abrams was able to outflank a Soviet formation and catch it completely be surprise by moving quickly and stealthily along a forest access road or some such. I don't know how realistic that was. Hopefully, someone with RL tank experience can enlighten us.

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