Four too many hallways/branch-offs, and miles more venting than even remotely necessary. What this means is usually alien victory or stalemate, because an egghunt on any reasonably sized server usually ends in the aliens setting a base up again and picking up where they left off. And humans might run into the same alien player three or four times before they finish the pilgrimage over to the alien base.
Tremulous just kind of doesn't scale. Human victory drops off in an inverse square of the map size.
Only thing I care about is playing different maps every once in a while, no matter how imbalanced they are. Does it really have to be that balanced? Only knowledge I need is that I can win, and the odds aren't that bad. Come on, just play something else than atcs and enjoy ^_^