Hand weapons in this game are like those overdone Honda Civics that kids pick up in high school after they get their first job; they don't really have a grasp of style, so they just start sticking all kinds of things all over them, because new = improved, right?
Take the phaser rifle. The first one is boring, the second one looks more sturdy, the third one looks complete...and after that, it just gets sillier with every tier.
The TOS Disruptor is too shiny and clean (looks beta-like), otherwise ok, but it should be rusty and dirty, think about it, its old.
It's a reward for a time travel mission so it would most likely be a "souvenir" you got from your trip to the 23rd century.
Kinda like if you went back in time and came home with a band new Gladius.
It would be shiny since it would still be new even though it was made centuries ago.
I wish the get rid of all the holographic stuff hanging off the top tier weapons. It doesn't look cool, it looks tacky. Be more original and make the weapon itself look different and not add a bunch of non-sense on the exterior.