I think it should be interesting to play Openra game with controller. Ok while it sound weird to but IMO it should open some new experience for player.

and consider if more complex game like Halowars manage to pull off RTS control scheme that work with controller I think it should work for OpenRa too.

and one reason I come up with this idea because it should be cool if i can play Openra and my mod on this device .  

[youtube]https://www.youtube.com/watch?v=dt-JvpdJBi0&t=205s[/youtube]