Miami will be both turf and grass. Only the NPPL field will be on turf. I'd recommend normal cleats for the grass, and a skate shoe, small rubber cleats or turf shoes for the NPPL field. If you have a Nike outlet store try to find their impact turf shoe, it's $29.99 usually, great shoe for turf.
R.I.P. Tyson - We'll miss you buddy.