Is there a way of preventing the map form resetting after a team wins in arena?

[Acegikmo]

I'm trying to make an arena map with a few custom gamemode things; but for this to work; the map has to be the same as it was when a team lost. Right now; the whole map resets after a win.
How do I prevent this?

 

[Acegikmo]

If they win through a map objective I can use that entity; but if they win by killing everyone on the opposing team; it reloads the map automatically