Trying to play offline, screen flashes to black twice then nothing

[zmfc]

So I have the free version of Tiberian Sun that I downloaded from FilePlanet and it wouldn't start because of a DLL error. After I ran TSpatch, all of the other functions such as online and skirmish work fine, but I still can't play the offline version. Every time I do, the screen flashes black for a second two times and then nothing else happens. This happens launching the game directly from the game files or through the CnCNet launcher. I tried running the patch again, reextracting the original RAR and patching again, installing an updated ddraw.dll I found in another thread, and manually changing the renderer. Changing the renderer extended the crash time enough for me to get a Windows message saying that the main executable had crashed, but nothing further. Any ideas? 

[dkeeton]

Try logging on to cncnet online, that will let it update. Then try a skirmish.

[zmfc]

I did, and also forced an update with /reset. Skirmish works fine as ever but still no offline.

[dkeeton]

Have you tried installing from this version? https://cnc-comm.com/tiberian-sun/downloads/the-game/installer