I'm not sure I can even remember Club Errera at this point. I played Winter Contingency in depth as it had a lot of novel things to have fun with, but I remain a bit sketchy with the other levels. I do remember one place where Hunters were chasing me around indoors and ammo seemed in short supply, and it was a major pain to complete the mission. I'm not sure if that was the club though.

: On that note, the platform at the start of the level is extremely quirky. If
: you look underneath it, there are raindrops coming down even under the
: opaque parts of the platform .

Ok, I can't really remember the start either, but I'll take your word for it. Seems like you've done a whole lot of looking around with this rain business!