What makes a good CM QB Map?

[Ratzki]

It was mentioned in the first post about the size of the map. What would be a reasonable size, that you feel would give some elbow room to move around on?
Also, even with some maps that you feel are too big, you can load them in the editor and chop bits off from both ends and come up with a size that fits the battle. Or put some "landmark" asterisks* on the map and agree to not move outside the borders marked. This solves the tank or squad retreating off the map by accident.