Simple items

I think the RL/Mortar colors somewhat make sense, at least to me, the rocket has a orangey trail and mortar and a (tiny) red light on it.

I think nex/electro/crylink colors are fine too as they fit their projectile/trail colors, but I agree Nex should only have one color, lightblue/cyan one IMO. I guess that was that the reasoning for whoever chose the perweapon crosshair colors, it does seem quite consistent in that sense.

As for the actual icons, crylink seems fine to me, easily identifiable. Mortar looks good, but almost identical to grenadelauncher in quake, I wonder if we could come up with something unique? But I can't say I can think of anything else atm

Nex icon looks good, but I have a feeling it wouldn't look as good in game, can you post a larger version so I can do some tests?