i would like to have an answer to this problem too.
Is there any way to solve it?

The last time I tried the campaign, the second level worked fine. The people I had help evaluate the first and second levels didn't have any issues either - people usually only reported having issues on the third level.

Did you try creating a new player profile before starting the campaign in TFS?

I would, if i could ... the campain-button is gone. :D

lol wtf... i played this mod the last few days in campaign mode and its a really nice one, but my campaign button is gone now too... btw i got this one to run by adding command line parameters -no movies -hardware cursor

The cinematics seems to be responsible in my case. I disabled them.

The latest update (2.9.1.2) disables the single player campaign. The campaign is not fully supported by the mod so is liable to be unbalanced and/or to crash at certain points.

The version of the mod on ModDB (2.9.1.1) does still, however, have the campaign enabled and will until the next version is released.

Ah, thx for the answers, i will try to get moddb`s version then, since the the campaign was real fun and some more challenging stuff, i hope it
wont chrash too much though ;)

just a heads up for those who play the campaign on mission 9 when the shipyard is coming in the game just crashes, no errors just takes you to the desktop, so if you could find the time please look into it thanks