Actually the most important thing is that the crew become shocked for quite some time, it could even go on for the entire turn. During this time the tank is a sitting duck and theres nothing you can do about it
I would rather button my tank commander and get the sight penalty than losing him to infantry in the midst of tank battle.
Also, during tank engagement the first thing that each tank will do is fire its MG which is horribly effective against unbuttoned tank commander.
[ January 02, 2003, 12:22 AM: Message edited by: Sabrewolf ]