I came up with as close a wall as I could..
I have a game set up on a map size 140 4 spots (me and 3 ai)
I gave everyone 85K on all resources
I set timer to 80 minutes peace
I have the mod 3400 (i think that is number) POP count..and built all I could (I made some extra mountains on this map as well as goodies )
When i have my infrastructure all inplace I then pepper my boundaries with tons of anti-aircraft,Tower and forts..literally a siegried line...
I do this 3 deep so as by the time units get through..
All Hounds are released on them
Neat set up and tough game..
I do love scenario making!
My own little Banana Republic so to speak!!
Peace
Grandpa Troll