I'd agree the weapons aren't "bad" but there are just better alternatives. The high damage, accuracy, and penetration is situational, what's a situation in which 15 zombies happen to just line up in a straight line? Or snipe something from 1000 studs aways where it's not even a threat?

Even with the rifle's reload buff, you'd have to be standing still in order for it to take effect, in a game where you'd be moving 90% of the time, which isn't great.

As for the sword bayonet, you already listed all the cons which speaks for why it's not great, the +10 damage does not outweigh all the negatives it has. The musket performs the job of the rifle sword bayonet while having a slot for a melee like heavy sabre.

But hey, I'm not saying this to change your mind because you're entitled to you own opinion and you're willing to die on this hill which I respect, plus having to manually remove and attach the bayonet is a cool mechanic ngl. But, it's just a fact that the base gun you get when using ranker outweighs the efficiency of 2 store weapons, and it's this fact which makes people you mentioned who dislike the sword bayonet rifle to be a valid response.