reading forums, a lot of people seems to have proplem with that, me too btw
.
you can find it even here
http://forum.1cpublishing.eu/showthread.php?t=23405 or
http://forum.1cpublishing.eu/showthread.php?t=23155
I suggest to wait till the next patch - when the arming screen should work and we can select the bombs AND the fuzes.
Than we can test again.