Yeah, but psionic users are rare
Why?? Why be so limiting in choice?
If one person can do it doesn’t it make sense anyone could, inborn abilities take away from the whole "develop" your character theme. If players have to choose between being psionic and not being psionic well then obviously their going to choose the former. The ability to use one's mind as a weapon should be hard earned through study & discipline, just like how a warrior must earn their strength through physical effort.
The character Races give the players an initial boost in whatever direction they wish to take, but it doesn’t say they can't explore new territory. Sure the Cogites have some serious disadvantages when it comes to using psionic abilities, but that dosen't mean the player can't use them, it means they have to be extra careful when doing so. Of course if one wants to go down the squishy-mage path completely they'd be better choosing a Psionite or Avian.
(Artilects are the exception, but they get some great bonuses for it)
I'm thinking of something more akin to the magic’s in literature, so no fireballs, no energy shields, no-summoning-monster-out-of-the-ether; I'm thinking of something far more subtle. I'm thinking of players their using psychic abilities to attack the minds of their opponents, both in the direct sense and through indirect psychological warfare by using illusions and the like, perhaps even going so far as mind control. Honestly once people start throwing bloody fireballs around everyone either has to be a mage, or inexplicably invincible.
Anyway who said psychic powers aren’t powerful?
Being able to set things on fire is cool, but it's not going to do you much good if your eyes aren’t working, if you've forgotten how to breathe, if somebody is breaking into your mind and literally changing it. How do you attack when friend & foe suddenly look exactly alike, how do you brace yourself against the pain of psychological torture?
What do you do when being attacked in a room full of people and you can't tell who is attacking you?
Sure guns let you kill at a distance, but they're loud and need ammo.
And there's never a guarantee that you're target is actually real, or your enemy.
Swords let you get up close and personal, they let you cause some pain and so see the truth.
Anyway in city streets and under the cover of illusions I imagine almost all combat will be of the melee/gun-fu variety, whereby the guns/swords question is quite irrelevant.
*thinks for a moment*
Actually I don't even know how ranged combat would work, the current combat system in development involves running up to one's enemy as a group and engaging their group.
...I suppose if you didn't do that you could never tell if the enemies you are attacking are real or not; gee what a great way to waste ammo
In short
Guns < Psychic (ammo wasting, blinding)
Psychic < Sword (illusions aren't effective up close)
Sword < Gun (well, it has the added functionality of range)
Melee weapons can be used to block gun attacks in melee (one assumes that the gunslinger is using their guns to block enemy attacks and as such will have difficulty getting a shot off) and although guns may be reasonably powerful, being hit by a sword is nearly always worse... being hit by a chainsaw is
definitely worse. Thus the ability to get one or two rounds off before combat starts is a fairly important ability for the gunslinger... actually, hang on, who said people can't carry both melee and ranged weapons?
What's stopping somebody from balancing out across several attack methods?
Having nine attributes and forcing the player to spread out their upgrades choices encourages exactly this behaviour.