Take a look at the Narn Gorith Variants.
There you'll see "Light Particle Beam"
Okay, one thing to know about B5Wars, just because it says "Beam" does not mean it fires as a beam. A lot of the names, and some of the game mechanics are fairly inaccurate.
For instance, a "beam" weapon in the FS2 sense would be comparable to the G'Quans Laser Cannons. Beam weapons have two general characteristics, they are Laser weapons and they are "Raking" weapons (the way in which they do damage). Laser weapons cannot be intercepted, and actually Raking weapons (a stream of damage like a laser) should not be interceptable either but it still only applies to lasers.
To make a long story short, from a B5Wars standpoint, and a FS2 standpoint, the Frazi or Gorith do not have "Beam" weapons. Not even the Minbari Nial has beam weapons (an Omega for instance, can 'shoot' down the attacks from a Nial). The only fighter with a beam weapon offhand is the Hyach Dartha which basically has a light ship laser.
One of the G'Quan variant has 2 Mags. A weapon so powerfull, that even the mighty Bin'Tak has only one of them. Ok it has less other weapons, but if even the Bin'Tak can have only one them theres no way a G'Quan can have 2 of them.
The variant you speak of, the G'Lan I believe has 2 Mags, 2 Medium Lasers and the normal AF weapons (4 Twin Arrays / 4 Light Pulse Cannons). It is a powerful ship, but it does not have more weapons than a Bin'Tak. It is a powerful ship but it's short ranged, which means other ships can cut it apart with long ranged fire before it even uses the Mag Guns.
The Ka'Toc Battle Destroyer has a 2 Heavy Lasers and a Mag Gun, and is smaller than the G'Quan as well. In the game it has the problem of having good long ranged and good short ranged weapons, which means the player doesn't know what to do with it. The Mag Gun is a sweet weapon, but it's not known to be overly large or anything. So it's really not too outrageous that these smaller ships would mount them. The core of the Bin'Taks firepower comes from its Heavy Lasers and the ballistic torpedoes I'd say. The Mag Gun is the coup de grace (finishing blow) for enemy ships really.
I mean the Sho'Kar light scout cruiser.
Ah, I gotcha. Well people will see similarities in a lot of different ships. Just look at the MOD forums, whenever someone posts something people say "hey, that looks like this ship" or something. Just as I'd say, "hey, the EA Warlock looks a lot like a piece of crap"
It's not so much the kutai and more the balvarin. And if you build all your ships in one style, then it's unlikely that you change that style all of a sudden, unless you make a technological brakethrough (like EA did with Warlock).
Ok maybe I was a little bit to harsh when I posted. I don't say it is a bad game, but it could have been better.
BTW the Brekiri ships really look cool.
Well, the Balvarin is kind of ugly, and no one ever really uses it too much anyway but I think it looks okay. I'm not really a fan of the Centauri ships at all myself, they're all kind of crappy though I like the Orieni-war period craft.
As with any venture, some things AoG has put out is not so hot, and some of it is. I think on the whole they've provided a lot of quality ships to the B5Wars universe. The Bin'Tak, the Brakiri Brokodas, the entire Dilgar Fleet, etcetera. I mean compare the Dilgar by AoG to the Dilgar by the Into the Fire computer game, and be glad we have B5Wars.