The FOTRS referred to there is the original Fall of the Rising Sun mod from the AOTD_MadMax modding team. That would most likely only be for the v1.2 and v1.3 of the mod. Version 2 is an SH4 v1.4 only mod. The current FotRSU (Fall of the Rising Sun Ultimate) mod is an updated FOTRS mod, combining all of the various versions the AOTD_MadMax team did, with even more, "modern" content added. There are quite a few changes in the FotRSU mod that renders it incompatible with most other mods, mostly due to ship and airplane calls.
