Which pre-made maps are suitable for MP?

The best ones are those that have team positions. I.e. your team will always start in the same place (usually together). Triple Entente is the only one I remember off the top of my head but there are a handful of large and medium maps that have the same property. They're only really good for the map's recommend team size though.

Dirty Sanchez made several amazing self extracting map packs - post the links Dirty

Ive found many Mp players are hostile to pre made maps... Guess they dont want newbies to form new strats to beat them...

I think I remember:

http://tinyurl.com/Sins20

However, they're outdated in that they don't account for the new gravity wells added by the Rebellion DLC's.

I think today's gamers are just a little lazy and don't want to take the 30-45 seconds needed to download and install a self-extracting map pack.  It's kind of sad.  I remember when I played Unreal Tournament (UT99) on dial-up and I used to figure out what maps a server was playing and then download them (all 3 MB's) over dial-up and manually install.

Feel like updating them Whip?  Those were some of the highlights at the peak of MP.

I really don't think it's worth the time and effort at this point.  However, I might remake some maps for Sins-2, especially if it has auto-download for custom maps.