I just flew for you in the fighter. Here is some feedback.
Good handling of outbound traffic
Transition altitude of 9000 feet is many miles above Tower’s airspace, so is incorrect. Check the Transition Altitude tutorial
I’ll call your base is NOT needed. It has a different function.
Don’t unable runway changes, but try to deal with it. Last second runway changes can be declined of course (shouldn’t even be requested)
Good: pattern entry instruction to new runway, 28.
No pattern entry needed for 28; I was already for 28
Don’t forget your sequencing. If you would have sequenced me behind the aircraft on final for 28, you would not have to send me around.
Decision to go-around was in itself good though