I know that unity has its own ambient occlusion. can u use blender instead of unity for ambient occlusion. i have been searching for this for at least 75 minutes and did not find a succesful answer. 
plz help
Can you bake your ambient occlusion as described here and then just use it as a occlusion-texture?
Aha, I have found the answer! The standard shader has maps in where you can put the ambient occlusion map, normal map etc. into! I can’t believe I didn’t realize this!
So in Blender, bake the maps into ambient occlusion, normal etc. Then import the textures and place it in the correct slots in the material. Make sure the material is using the standard shader though!