I just downloaded the file and all is well here. Unzip/unrars as it should.
Maybe you should try a different unzipper or perhaps download it again. I've sometimes had an unworkable rar/zip file that for no apparent reason works with a second download.
And just on an aside - this map really could do with a complete overhaul. There are far better maps to install ...
I will try a different unzipper. I have tried three times with WinRAR. I also have WinZip.
As for the map itself ... we fly historic missions of the US Navy and other Medium and Heavy Bomb Groups in the PTO, MTO and ETO. Formosa was a target in 1944-45 and as such, no matter what overhaul is needed, this map is the ONLY one that covers that part of the Pacific. We either use it or lose the missions, simple as that. same with other under-represented areas such as most Germany targets, Rabaul, and many small island areas such as Yap, and Ulithi. I have made my own Nauru and the Azores to fill some of the gaps but I am not as skilled as you are at the moment nor do I have all the time to do the larger maps.
By the way, it appears to be hanging up with the ag_Formosa/load/Redko.ini file. I placed your _Tex file for it in the ag folder along with three others: New_Georgia, Cape_Gloucester, and Hankow. They all work fine. for some reason it can not find the textures for Formosa. Go figure that one.
Any other suggestions welcome sir.