I used to have this game but lost it. I downloaded it and looked at the readme to install.
I don't understand what they mean by LFN.
I have WinRar and WinZip on my system.
If I unrar/zip every one of the compressed files, it would take over 8 hours according to the time on WinRar to extract everything.
Here is the install instructions. Note I have never done this before.
Unzip, unrar to decompress the LFN's (using unrar.exe or WinRAR), import
SWAT3.REG into your registry, then run SWAT.EXE to play the game.