All the weapons in the game have their own place and purpose and each does its own different thing. There is only one weapon that I didn't like from any points of view however, and believe it has to go: The Hagar (weapon nr. 8 ). It's that rocket launcher which shoots out rockets like a minigun and shoots bouncing rockets with the alt fire.
There are many reasons why I believe it must go. The first one if that it's too similar to the Rocket Launcher (nr. 9 ) just that it shoots the rockets much faster, and it's much more fun for all weapons to be as different as possible from one another.
Second, it's firing type is very unrealistic. It's nice to shoot so many rockets like that but it kind of exaggerates the possibilities of any weapon. While bouncing rockets are totally unrealistic too... how can a rocket bounce? And be fired at that rate at the same time?
The third reason is that the weapon model for that gun is the ugliest one from the arsenal. It looks like a very simple weapon similar to the models in Unreal classic and it's ruining the entire view.
So overall I think that weapon really needs to go soon. Of course I'm not saying "remove it" as it's already been introduced in maps and there are already too little weapons in the game, I'm just suggesting it gets replaced with something totally different. My personal suggestion would be a flamethrower, because the game has very few weapons that shoot something you hold over an enemy (like a flame or laser) instead of projectiles. It could still use rocket ammo for making flames too.