Why do it only give 1 round per 2 levels?

Forgot about it. Mass Driver doesn't effective at all. Now this "weapon" can only make the sounds of explosions and to scare people.

This is also relevant. MD is a waste of time now since the standard Flaylock out damages the Freedom and fuse locus grenades will be added soon to fully diminish any purpose of using the weapon.

Turns out that aside from proficiency, all the secondary skills are near useless. (Direct all +1s to Zeylon Rho)
Those skills need to be weapon specific instead of a blanket of the same percentages.

Maybe some of us use weapons because it is fun to us? Sure the other weapons are better than the MD but it is way more fun to use! Also, when used right, the MD provides great support and area control. I think it is most useful for logibros since we should be supporting the team and not killing as much but can bring in the firepower to help provide cover and whatnot.

I have proficiency 5 in it and used it since open beta. They nerfed it down to the level of an AR that just happens to shoot grenades. I still use it, because I'd rather stick with the false hope that they'll rebalance a weapon that they had no reason nerfing based on playtests over player feedback. At the same time, if someone is curious about a weapon and wanted an honest opinion, I'll give it to them. You wouldn't tell someone to spec into the laser or dropships now would you?