[lurkingknight]

depending on your choice of gun, it could be 6-20 pounds of stuff to carry around all day. A sling is great because it takes the load off your arms when you are a non combatant walking to respawn. It's also very clear you are dead since you don't have a gun in your hands.

I find it a great help since I can be hands free while I'm moving out of an engagement zone. It's so much nicer when I can manipulate kill sticks/kill flag, find a snack, grab a drink do a gear check to make sure I haven't dropped anything. It takes a lot off your arms. It doesn't seem like it in a short game, but in longer games, it really starts to help. Also gives you an opportunity to stretch your hands and fingers, holding a gun for a long time can cramp them up, or at least make them a bit stiff.