My advice would be to use the system that we use with normal MP games,
here. Some of the stuff it offers would be important for a tournament:
Balanced armies - Both sides get armies with the same average experience and numbers, and equal artillery. Sandbox games with stock OOBs are usually very unbalanced.
Balanced Objectives - Objectives can be set to be balanced between the two sides, so that fighting is forced. (You have to have objectives for it to be fun, because without them there's no reason for either side to attack).
Recorded results - The battle results are also recorded on the website so you can see how each regiment did.
Example.
If you're interested and want to know how to use it, you could come on our
teamspeak and test it out, we can answer any questions.
