For Call of duty 3? Achievements?close combat achievement? and purple heart achievement? how do you get them?

How do you get the achievement where you have to finish a mission without firing a round! which mission is best! because some force you to use your gun sometimes.


And how do you get the purple heart achievement!

For Call of duty 3? Achievements?close combat achievement? and purple heart achievement? how do you get them?
you dont nessicarily ever need to use ur gun unless they force you onto a turret or a tank gun. But you melee them or use nades. Either of these will work. specify the purple heart acheivement also. my email is whatabouttheban@yahoo.com