Agreed, but some people just sit back and kill the players playing a objective.
in my experience teams with a majority of players like that usually lose. Objective game types my strategy is usually get aggressive as possible. Especially game types like oddball and KOH. I'll die ten times running into that hill but get those windows when the other team is out of position and the hill is cleared. start racking up seconds.
A buddy and I love playing oddball for some reason, our strategy is just dog pile on the ball over and over. Win by attrition. Eventually one of us has the ball and the other covers him. Even if its for a few seconds, its a few seconds of the other team not having the ball. Dudes can sit there and kill people the whole match, go 30-0, but without that ball they lose.
Ive noticed that (obviously) for each player focused on kills, its just another player the other team has not going for the objective.
CTF i dial it back a little and try to get good lanes in and out of the flag capture area but if i can yell GATTACA and grab the flag and get it outside the base, its a lot easier to get than if its inside the base.