I have the same issue – the game segfaults when I shoot a gun.
Im using KDE.
The interesting thing is, that ns2 doesn't segfaults all the time.
If the kwin's composite effects are enabled (normally I start ns2 with composite…
Same here: NS2 Build 258 crashes on the first shot in the tutorial.
I have cleaned the cache in ~/.config/Natural Selection 2/cache
Previous Builds ran fine on the same machine.
steam runs with: