Use lightmap data in shader

Well for 1, your dissolve shader is CG and your lightmap shader is ShaderLab. Hard to combine. Tinting is simply multiplying by a color, so give it a color input property, and bind/combine (ShaderLab) or $$anonymous$$ultiply (CG) it by the texture. You may run into an issue with having 3 texture reads, a lightmap read, and a few colors... Just some thoughts. Hope this helps.