This is one of my very first stadiums, built around 2 years ago.  I don't have a download link for it anymore, as I destroyed the build over a year ago.

Features:
2 Locker Rooms w/ bathrooms & showers
Press Conference Room
Film Room
Catering Room
Indoor Parking (added after video)
3 Coaches Offices
Pro Shop
Restaurant
Concession Stands
Fan Area Bathrooms

My building skills have vastly improved since I built this stadium, so please bare that in mind.