[Mardagg]

As far as I understood these marathon games are played on a really huge map with quite a few players only.This is just a paradise for Ermor!
I am sure,that Norfleet is a very experienced player with ermor,but it is more than 100% clear to me,that Ermor is by FAR the strongest nation with such settings.

No chance for most other nations IMO.
Even if they ally together against Ermor...on such a huge map with few players that will be difficult to do.

I recommend using R`lyeh.
Nearly all undead troops are mindless but all commanders are not mindless...which means that mind bLasts do target the commanders..and that means that you dont have to deal with the insanely huge number of undeads he will have for sure in these type of game, as these just disappear without commanders.