Fellow citizens of the Ogreverse, I submit for your gaming pleasure a variant my son and I have developed for the "Exercise T" scenario (which you can read here:
http://www.sjgames.com/pyramid/sample.html?id=2821).
We call it the Superheavy Variant. You play the advanced (3 wave) scenario on the crater map. Instead of a Mark III, each player receives 5 Superheavies as the second wave. Also, once any player has this second wave; then any player in sole control of the command post can opt to obtain a superheavy tank as a reinforcement instead of a randomly-rolled 3-of-a-kind.
This places the actual ogre action toward the end of the game, while introducing a little more maneuvering in the mid-game. My son and I plan to go public with this variant at GMX ("Geek Media Expo") Nashville this Friday night, where we are hosting an Ogre game. This scenario will be it.