If that team is out-capturing the other team in objectives, they will win. If they play something like CTF, if they can out maneuver the other team, they can win. I have over 15 yrs. experience playing shooters online, around 3 of those years I played in a league - I have the experience to know what I'm talking about. Being able to aim/kill efficiently is important, but it isn't everything, and lack of this skill does not necessarily mean a player is bad at the game. There are many variables at play. My strongest class is Medic, and I often don't spend that much time killing others, since I am more focused on playing my role and offering support. I'm also not that strong at aiming with a controller, but I don't really have to be, because the gametypes I play don't call for it. If I can keep healing and reviving my teammates, they can essentially fight my battles for me. If I keep capturing points, There is little need to rack up kills.