Game is horribly unbalanced

Helldivers is a very fun game but the weapons feel so disproportionate in damage and many other ways, it feels like you need a certain build to combat anything in difficulty 7 and above, there are guns I really want to use but because their damage and everything about them are trash I just can’t use them in higher difficulties without getting killed 85 times by some bs enemy

Tell me what you think the current state of the game is like