Can I change my name?

Yes, in your 'Profile' you can do so by clicking on 'Edit' option and selecting the relevant option.

Can I change my Strategy?

Yes, in you 'Profile' you can do so in 'R&D' and selecting the relevant option.

Can I reset my game and start all over again?

Yes, in you 'Profile' you can do so by clicking on 'Edit' option and selecting the relevant option. There are two types of start overs possible: Resetting and Erase.

Resetting will delete all your game progress including Level, Xp, Skill points, Ops progress, Units and Properties. Only in-hand Gold Bars, Gold Bar Units, captains, commanders, and Alliances are retained. Choosing this option costs Gold Bars.

Erase option is free but nothing will be retained except commanders. Also, you will have to sell back your Gold Bar Units.