I really like the ability to make scenarios, and I think it works pretty well. I think that there are couple of things Afterwind could do to improve it, however.
-First of all, you should be able to have multiple events on the same turn. For example, if on week one you wanted to give each territory in the U.S. twenty tanks, you could even if they were controlled by different players.
-Second of all, you should be able to make your own units and/or change unit stats and costs. Also, it would be cool if you could restrict certain units to be used only by specific players.
-Third of all, you should be able to allow an option that lets you have every two weeks or every week reinforcements.
-Last off, you should be able to change rare units stats, pictures, names, etc. and add them in events.