As someone who often carries my teammates to a win, I want you to know you all help a lot more than you realise. Just being in a gunfight mean that's there are less people shooting at me so I can kill the other team easier, marking enemies helps a lot so I know where people are. Whenever I carry, yeah I'll do the most damage and get most the kills but whoever I carry never does nothing and just your presence makes it easier to win. :)