The renderings of battle scenes may or may not function correctly, but lurker did the best job of any of the SH4 modders in that regard. (Warning - pendantic info follows) When doing mods, it is important to not have your game installed in a Program Files folder on your hard drive. You can make your own folder, such as "Games" in the C: drive and copy and paste the game there if desired. Also of equal importance is the emptying of the Save game folder, which by default is found in the "C:\Users \UserName \Documents \SH4" folder (or similar, dependent upon your OS). The game stores all of its information that it runs the game from in there, and if you don't empty it prior to playing a new mod, you will still have portions of the old mod or Stock that are active. Another way to avoid the situation is to use a different copy of the game for the different mods, and then use MultiSH4 to write a new Save folder for each copy, with a unique name for each.
RFB for the most part uses the Stock campaign files, which includes the "messages.txt" (28kb) file in the Data / Campaigns / Campaign folder. RSRDC will overwrite that file (64kb), and give you about two and a quarter times again as much info, including intel on where some of lurker's Random Generated Groups will track for you to go hunt... Generally speaking, lurker did not use the Ubi-styled contact reports very often, which you would get by the game showing a box on the NavMap screen in Stock. You can still do the radio "Contact Report" stuff though.
