There are parts of the vocals that are put in places where Bruce let the audience sing. For example in The Clansman, in the "no, we can't let them take anymore" and the "oooh" part afterwards you can hear Bruce sing a line, then scream in a much higher register for the audience to sing it, but he also sings it and you'll notice that it's the exact same vocal as the previous line. There's a bootleg from that concert where you can hear the differences. Fear Of The Dark has similar edits.What do you mean by copy pasted vocals?
Also, is LAD really re-recorded, I've never read that anywhere but here. You see that pop up about unleashed in the east all the time, but not LAD
As for LAD, Adrian's backing vocals for Aces High are rerecorded, IIRC the guitar for one song was rerecorded because on the recording it was out of tune and Bruce's vocals for Aces High were also rerecorded afterwards. Someone who knows better can correct me, or add to that.