The trench_fight.zip file you have requested: Maps Levels Missions / Others / S to T Titles / Trench Fight - Infantry Map - 5.47mb is not available. Perhaps try browsing all files for the game Battlefield 1942 and upload any files you want to share or are missing. This is the only information we could locate:
Trench-Fight-Infantery-Map for Battlefield 1942.
Copy and paste the map file Trench_Fight_ to the Mod folder for bf1942/levels
If you did a standard installation of BF1942 your directory structure should be as
fo Trench Fight is an Infantry map for Battlefield 1942.