Question regarding arena textures

[jraymond]

Thanks smacktalks community, you all have given me many hours of fun with alll the tools and info you've archived here. Quick question if anyone has a minute free...

If I want to replace the advertisements in the arenas (wwe.com etc..) which tool would you recommend?  I've tried a few different pac editors and have gotten as far as extracting and editing the dds files, but when I try to inject the edited file back into the pac it doesn't seem to take. I've been through a few texture tutorials but still not sure if the error is mine or if there's a known issue with arena textures that I don't know about.

Can this be done in 2k18 yet and if so, which tool do I need?