capture the flag problems

IMO, the reason why no one plays the objective is because
(a) They don't want to die (dying means losing their killstreaks)
(b) The way COD/mc-war is made doesn't promote team play, but solo-survival
Because when you die, you lose all of your killstreaks so this tends to lead towards players not playing with teammates but only trying to live. That's why games like Overwatch are more popular on the killstreak part. Even if you aren't the best, you'll still be able to use your ultimate because Overwatch's abilities are cooldowns instead of earned ones. And the ultimates are progressive ones, instead of reward types, so even if you are bad, you'll at least get to use your strongest ability once.