I played Unturned with windows a while and started playing under Linux.
Whenever I shoot, my mouse cursor (better to say cross-hair) pulls down dramatically which makes it impossible to aim (basically the character looks down whenever I shoot)
uname -a
Linux machine 4.10.0-35-generic #39~16.04.1-Ubuntu SMP Wed Sep 13
09:02:42 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
that bug is funny because you can aim to the ground but the bullets go to random directions.(one day I shot the ground but the bullet just got directly to my friends head)