being able to HK slap the MP5

pulling the charging handle backwards and up locking it in position then after a empty reload, slapping the charging handle back down to send the charging handle forwards to chamber the first round, though people can still reload the gun as normal if they please

with the revolver being added and being able to spin the cylinder giving the gun it's own sense of character and feel, having guns with there personal functions and the extra details added would be a fun wan to freshen up the gameplay