The chaosmod.ace file you have requested: Mods / Mini-Mods / Chaos Mod - 232.8kb 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:
I'm not exactly sure the details of this mod, however, the author said that enemy infantry is invisible. Seems pretty promising.