The 1_vs_1_trench.zip file you have requested: Maps / Multiplayer / 1v1 trench - 18.59kb is not available. Perhaps try browsing all files for the game Battle for Middle-earth II and upload any files you want to share or are missing. This is the only information we could locate:
This is a symmetrical 1 vs 1 map that has 4 wild goblins, 4 wild wights, and a wild fire drake. There is a trench cutting horizontally through the center of the map. There is an outpost and an inn next to both players' ramp into the trench, and there is a signal fire at each end of the trench. It's a good map for quick and fun battles.