Just for the record and in case somebody has experienced this as well: sometimes a wrong weapon name is displayed if a weapon from a dead opponent is picked up. For instance, the HUD display says "Showfield something picked up", you say "Great! better than that damned remington!", you switch to akimbo-mode and find out "damn, picked up the remington and not the Showfield "
It's not a big deal, it's just annoying.