A bit the same as the main tank but a little different I will do 2 occlusion bakes one with only the track and another with track,hull and wheels these I will use for the colour and dirt maps (photoshop layer mask). The bakes are done at 4k but will most likely bump them up to 8k then add a little blur to get rid of the grainness. The way I layed out the UVs was the best to paint in photoshop thats were the occlusion realy comes in handy you can see were the high lighted areas are, any thing that does not look right will be fixed in mudbox............dave

Edit:Yes I know Rick but it does create problems, look at the main tank at the front nuts all the same colour (will fix)