Only used by MOD SDK WorldBuilder v1.12 This should be the file corresponding to the 2.4 version of the mod.
How to use: 1. Decompress this 7z to WB folder. 2. Open RA3_wb_1.12.cfg, then add "add-big CFAWB_2.4_Streams.big" to it. 3. Depending on the situation, it may be necessary to increase "ChaosFA_(version)_Misc.big"