Have tried to change keyboard shortcuts to other things like char 0 or / or clicking right mouse button twice…
No chance to zoom in first step or second step for more than 1 millisecond…
First zoom-step (kimme/korn) is only sometimes reachable with second mouseclick for long.
Second Zoom-step (sniper-mode) is unpossible to hold, only look and shoot in the dark…

The Game is not playable that way on a mac !!