<a contenteditable="false" data-ipshover="" data-ipshover-target="<___base_url___>/index.php?/profile/12323-despo20/&do=hovercard" data-mentionid="12323" href="<___base_url___>/index.php?/profile/12323-despo20/">@despo20</a> It looks awesome. A couple of points, before you lighten the AO, consider that the environment lighting in game is rather, well, I don't know a nice way to put it, let's say unforgiving
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My white areas of the AO are as white as can be, and I use a strong shading to it, yet the white AO areas still come out somewhat dark. I find that if the model looks great in blender, I will need to boost the saturation and contrast of all textures for it to look just as vibrant in game. In blender everything looks over saturated, but in game it comes out nice. I think it is because in the 'sun' the game casts some strange pale blue shadow on everything, and brightens it (but adds more contrast) in 'rain'. I would have thought it would be the opposite way around, or at least less blue wash in sun.
Try tinkering with the contrast/brightness/saturation of the textures before you change the AO.
The good AO from blender should not darken faces with no shadows cast on them, so roofs, walls etc. The AO simply adds some nice contrast around the beams, especially if you have the attenuation down to around 20 cm, which is what I use as default.
