It's just the nature of the game today. All melee with no real tactics. Heavy Weapons are the preferred choice for people who only care about ringing up easy kills with little skill.
Trust me, I feel you! The onslaught of non-stop rifle grenades, arty dropped everything it's available, and someone on each team running around with the trigger fully pulled on flamer is frustrating, BUT it's just something you accept if you want to just play.