https://bugs.winehq.org/show_bug.cgi?id=43995
--- Comment #14 from debianxfce fin4478@hotmail.com --- (In reply to mi.bar.2001 from comment #13)
I meant restarting both the mission and the game
Distribution kernels are slow and the 4.9 kernel very old. Make a non debug 1000Hz timer kernel from the 4.14.8 kernel at kernel.org. You have some threading problem and speeding up might help.