Hey Alien I noticed that you needed some help baking out the maps in Xnormal. I looked at the image above and maybe you could do somethings to fix those issues. The weird hard line could be vertices that haven't been welded together. The nasty artifacts can be fixed by expanding the cage out a little more in that area (sometimes that gives you more artifacts because the geometry is so close together) . The rim around the button can be fixed by adding more geometry and you'll get rid of the jagged look to it around the edge. The low res detail can be corrected but scaling up the UVs in that area or fixing the UVs all together. Remember that theres no limit to geometry or textures in this contest so you could probably create different texture sets to make it look even better. I cant really see whats going on in the lower image there. I tend to over work on my normal map and fix it as much as possible so I dont have issues with the other maps I need to bake out. I hope that helps you a bit. Post up more issues if you'd like more help on this.
ill admit i have cut some corners in particular with the belt having multiple bits of geo for a texture set in an attempt to save me some time as i think it maybe a push for me to get this finished on time. but it seems to have caused me a lot of issues instead hahahaha.
