Aces High
cool name. better than Aces High 2.
Think about it.
Fighter Ace 2.. Fighter Ace 3
Warbirds 2.. Warbirds 3
Air Warrior 2, 3..
All lame names.
Just keep the Brand name as is.
You can still market the new game without putting a II on the end. "Tour of Duty" tag is enough.