Add more missions, like a naval strike one,
Make the USS Tiny have arresting gear, human A.I (Ex: when you bomb a place and human A.I is just chilling, make them run for cover) add various weapons, like howitzers, mortars, make wing gun more customizable, slats and flaps, actual virtual cockpits, perhaps be able to walk around, interact with other A.I, like “form up” or “enemy inbound” and also more fuel efficient jets based on the GE9X, a airliner starter aircraft, a tracking system, nav systems, instrumentation, more customizable bombs like the 5ton FAB5000 (aka soviet nuke before nukes were a thing) and a couple of straight up meme parts, like self destruct (for iOS) and ramjets.
I KNOW THIS IS A LOT. THIS IS AN INSPIRATION LIST! Thanks for reading!