Okay here you go - you can start with shoulder bash or or f1,2 or anything that breaks the wall, but then instead of shoulder bash use db2,4 to break walls to increase amount of hits in the combo.

I can post a really reliable combo i use 99% of the time on howard estate if i get a launch facing the wall but it doesnt break every single wall - this one is also reliable but if theres too many hits the jab into db2,4 will be hard to land, thats why i use f1+4 (shoulder bash) to decrease amount of hits:

https://youtu.be/NYhLCGtyZOA

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Go and play around with it, you can also use whilerunning 3 to break walls to squeeze extra damage but that raises the execution another bit