I just played a match with it and I got 10 kills, 15 assists, and 2 deaths. The amount of assists I get with that gun is why I think it sucks. It's either just under-powered enough to prevent me from finishing the job half the time or the rate-of-fire is low enough that too many of my kills or stolen.

If you're looking at wpns as far as proto lvl goes, then here's my thoughts:

tons of wpns are a bit in an awkward loop of their damage priority lvls. So yeah a ScR has a huge damage output and probably is the strongest wpn by far. A railgun is identical in damage, a but more actually, but doesn't have any drawbacks at any range; will perform the same whether it's up close, mid or far and still maintains the superior range over an assault.

If you want to throw the combat rifle then the combat rifle has the advantage of speed, better targeting snipe and stability over a duvolle.

If you wanted to get into a fire fight at mid range the railgun and combat rifle would probably beat tons of he assault rifles; a tactical or creo might give you a chance but if everything else is equal even at a mid range those two should do you in.

When we argue about the usefulness of assault rifles, not that they're bad, I use them, but it's not like they have the field role they once had. It's like you have a better chance using the ion bolt pistol as a shotgun vs a shotgun and knowing if it was a short quarter combat scenario the bolt pistol might be the overall better wpn.

The best way to approach the overall point is that weapon assortment with update after update has kind of caused some weapons to have no real honest role in the game. A lot of users who rely on assault rifles do so because it's the easier weapon to use initially; combat rifles and rail rifles take skills but that's a skill point issue. Likewise game dynamics reduce the roll where it's no longer the simple HMG, shotgun, mass drivers, assault rifles and lasers in play. You get a lot more weapon variety and players who can now afford the skill points to make combos that were really usable before; can treat your assault as a scout or make that ion pistol a better shotgun. If you get in a shooting match at the optimal range of he duvolle, you might still easily end up loosing a shooting match against an RS 90 or a rail rifle with all things equal. Heaven forbid we include ScR's in this.

That's really my take on it, that the assault rifles aren't useless but really lack the all-purpose usage that you can manage out of the combat and rail rifles.