The battlegroup42_full_client_1_35a.exe file you have requested: Modifications / BattleGroup 42 / Battlegroup42 Client Part 1 of 3 - 680mb 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:
Part 1 of 3 for v1.35a of Battlegroup42.NOTE: To install this mod, you need to download parts 2 and 3, then put all 3 parts into the same folder. Once that's done, just run the .exe to install it.