What if they made the default syringe shoot darts with alt-fire?
I think this dart system is really, really cool, but that makes the syringe a bit obsolete for healing others.
I like squeezing the gun in my loadout every now and then, but sometimes it bugs me that now I've got TWO pistols, and the healing one comes up first, and it doesn't level up my current perk (unless I'm a medic, but then again I've already got just that pistol
).
So, if I just want to help a bit with heals, I'd use the syringe for darts, and if I feel like I'd be better off being able to shoot a bit while helping with heals, I'd buy the pistol (or whatever other medic weapon, if I've got room).