Mega playscape upgrades

Thanks @rockyb2006 , tried 2 rounds of assault only & didn’t see any change.

@chrisdirai146, pfft, I agree. Was trying to get the horsey thingies to upgrade because I think they’re cute. This is the first time i’m likely to scrap major event content & unlike other items I’ll be happy for this stuff to disappear into the depths of my storage.