The atrt_bf1ready.rar file you have requested: Utilities / Source Files and Packs / AT-RT Source Files - 4.25mb is not available. Perhaps try browsing all files for the game Star Wars Battlefront and upload any files you want to share or are missing. This is the only information we could locate:
This is another port of a BF2 vehicle to BF1, this time it is the AT-RT. The AT-RT is fully-functional and ready to use in any map.