multi staged ctf?

[Dustoxx]

Since i'm not very good with entity's, i'm just going to ask.
Is there a way to make a multiple-stage ctf map? Like Dustbowl but just ctf.

 

[Fearlezz]

I made a ctf_dustbowl for myself once, never released it though. And now its lost.
I basiclly just used default ctf settings, only when a team caps 3 intels, the stage would change, and resetting the round, so the map wouldnt change.

Good luck!