Don't know for sure about that WFTE but I'd guess that main guitar effect thats in the intro. The synth solo is basically, from what I could gether Joe scratching. He has some things to cue tracks on his turntables so he cues the notes with it. about WTCFM I'd guess one of the many synth parts.
I know that one of the things Hahn does on "When They Come For Me" is play the bass samples in the verses
I feel like we need some more scratching on the new album. The last good scratching was on ATS with Wretches and Kings. I think a song like Cure for the Itch or Session should be done again