Horde Defense Mode

I think it would be an amazing addition if you added some type of horde defense mode.

1. Maybe 5-10 people would have to defend an object.
2. The waves would increase in difficulty, adding more exciting opponents each couple waves.
3. Have a Boss round every 10 or so waves.
4. New icons

PVE, obviously. Maybe it would be a nice change up after a couple ranked matches. Just an idea!