Camera setting

I'm doing this plant vs zombie clone for a udemy course, but i thought of doing it slightly different than the way they do it.

Instead of ortographic camera, i'd like to have a isometric view, with the units pretty much like in final fantasy tactics



only up to now i only managed to see everything in isometric perspective, instead of seeing the "field" in such perspective and the units as upright entities. My enemies and units are appearing lying in the field.

how can i change this?