I tried to upload an screen shot but the file was to big, anyhow i was running to pick up the skull after i killed someone and while walking toward the body and pressing F it put the hold F Skull logo in the center of my screen as if i were doing a long claim but nothing happened and i was unable to move/ use any abilities making the game completely unplayable. Sadly the fireteam had moved on to another area so instead of them killing me i was forced to quit rather than wait for them to win causing me to lose all XP.
I hope with bugs like this they release 2xp for everyone.