The interweapon.rar file you have requested: Miscellaneous / ODF Mods / Inter-Weapon - 1.89kb is not available. Perhaps try browsing all files for the game Star Trek: Armada II and upload any files you want to share or are missing. This is the only information we could locate:
From the glance I took, it is an ODF enhancement that makes the Intrepid class...strong. This, of course, being an understatement. Quite literally, if you want a hero ship (I.e Voyager anyone?) as a standard Intrepid, this is the odf replacement you'll want for your stock ship. I'm guessing it's a first mod and ODFing is where a lot of people started, so don't be too harsh.