What do you people like and/or expect from a Warcry Tournament?

[Evil Bob]

Starting preparations for a major midwestern Summer convention and I am seeking input on what people like/dislike for their Warcry tournaments.

Some of the basics so far:

• Of the four scenarios that no more than two will strongly favor any one Warband structure meta.
• Pre-Prepared terrain layouts.  Cards are not practical with what is available.
• Gaps between matches for bio-breaks/lunch/opponent-sorting
• Balancing time and material needs on participants.
• Random Pairing with an emphasis on no repeats or matches with people who came to the convention together.

Any insight on what people have found problematic would be appreciated.  Anything fun outside what Games Workshop has published would be really appreciated.