It's In da rules... but it is essentially the following:
SIDEARM class weapons may be used in CC and their normal damage value is allowed- for example, Joe Grunt of the Cap Light Infantry gets charged by a Karnophage and lives through it. On his turn he can choose to use his Pistol (using his CC score) to pistol-whip (dmg 4) or shoot (dmg 8 ). The score to hit for shooting him is teh CC score.
That 'splain it?
