I hope this is already on the fix list somewhere, but just in case it's not... It is a well known fact that mini walls don't affect an engineers wall limit, and so one engineer can waste lots of time and make lots of walls. I suggest a system that incorporates the mini walls into the limit. Small walls cost 1 wall point, full walls cost 3 wall points, and instead of starting with 10 wall points engies would start with 30, and all current increments would be like-wise tripled. Pros: Fewer Exploits. Cons: Fewer Exploits.