I have played 3 games with the AI and every time they only use planes and nothing else can we have an AI that's a little less predictable thanks....
I know it's the beta I'm just saying my observation and just making shore its some thing that is not over looked.
The only reason for the lack of land/sea is the buggy parthing. https://forums.uberent.com/threads/for-backers-only-ai-building-stuff.49742/page-8#post-795852 Have a read of that.