how to add wrinkle to basic texture not use highpoly

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I'm working for a CAPF mod recently，I noticed the wrinkle on CO maps in most mod。

I know the normal process is carve a highpoly and bake it on the lowpoly，I tried to carve in ZBRUSH, but I screwed up。

 

now my method is to make normal maps in Substance Painter and then overlay base texture with Photoshop，but that makes base texture look rougher(my english very suck, hope you know that meaning

so have there any better way?thx