After playing around some more both in Unity and Blender, I realised the lighting I had set up in Unity was pretty intense. I can now see that my AO map does make a very subtle change after reducing it!
Hi Kent, thanks for the quick response. I also posted on the community forum and got the response that I needed to change my shading from multitexture to GLSL. That was my problem, I’m now up and running again!
No rigging yet (wouldn’t know where to start with it!). I moved on with the course as it wasn’t something preventing me from continuing, just a weird little glitch I thought I’d ask about. Thanks for the response!