OK, with Ren's little description of gear I just want to bring a few things up to clear the air on what exists and what doesn't.
Lasers and plasma weapons are not a practical thing. They are far too big for any normal person to use. Ships can use them as ships are much bigger than people. My reason for doing this is to avoid pissing matches on how, "My disintegration rifle can melt through that 2 foot steel door."
So for those of you who know, think Mass Effect, clips, bullets, and no crazy laser guns.
As for special tech, this galaxy is still pretty young all things considered. We have holograms, but no hard light. Similarly, shields are in the same boat as lasers, the only thing that can count as a personal shield is the Guardian's kinetic shield, which is a force shield on the arm, think like a glowing and partly translucent square shield.
As for power armor, everybody has it, but there are three types. Guardian, which is basically a super suit, heavily armored, augmented joints and force to turn a strong man into a juggernaut. Then Utility armor, this is the kind of stuff engineers, technicians and medics use. It's light in the way of protection, but has plenty of slots, utilities, and sources to perform different tasks, like welding, healing, and hacking in the field. Finally, is combat armor, this is a sort of medium armor that focuses more on being combat effective, having more spaces for extra clips and a few little slots for a select groups of "combat powers" like ammo types and cloaking for the infiltrator.
Now to describe a bit on ammo types, this is more of a soldier thing, but a soldier and infiltrator have access to different types of ammo that can be changed on the fly, even without swapping clips. Just enter in a command into your gun's interface and enjoy the new type of round. Now each gun is change by the round as well. explosive rounds would drop the clip size, range, and rate of fire, but get... well... explosive-ness. The same goes for other guns as well, but not all. The Argent Dawns weapons are mostly compatible, but certain types are not. Your generic rifle is. But the special burst shotgun that fires riot or lethal rounds would not be.
Now this isn't law. A technician doesn't have to wear utility armor if the situation doesn't' call for it. And a Guardian doesn't need to wear power armor or use the kinetic shield. I'd recommend it, because why would you have picked the class otherwise? Still, it is not law and long as you say, "Hey I dawn combat armor even though I'm a medic." I'll simply say have fun sport.
Finally, any "special" tech that you want your character to have, run it by me first. Chances are I will say yes, but I need to know and think about what this world can have in it's existence.
If anybody has any questions or concerns PLEASE let me know. I need feedback to do this right.