There are quite a few available. Go to an online arena, click on staged missions in the tower, then select mission and then check show missions for all terrains. I have 5 missions for the ndisles terrain and one WW1 mission on the server. The ndisles all start with IA for in air spawn. There are 2 1v1 missions and 3 heavy fighter missions where you spawn with ords, but there are enemy AI to fight if you want to just jettison your ords. Highlight the one you want and click on download. Make sure you have the right terrain chosen when you start offline. These are easily modified if you want something different. Let me know if you have any questions. Good luck.