If you want to save on ammo, use Floyd -- even if a second player is not available. Find a hiding place, like a crate or a rock, stand behind it and press START on the second controller to activate Floyd (once you have put him together on Tawfret). Now shoot down your enemies from a safe distance, without wasting any ammo. Do the same if you want to take out crates. You can also use Floyd to snip – even when you don't have sniper rifle ammo. When playing with two players, player one can hide behind a box and zoom in on far away enemies with the sniper rifle. Whether player one has a clear line of fire or not, Floyd's higher up position ensures that player two can do the work – without wasting ammo.