I don't know if you can use it yet, but Battle Armour (available at Archer and Wesson armour vendors) is good for dealing with many enemies. It doesn't have the fire or poison protection that Kevlar affords, but has much higher piercing and force armour (which most mutants and aggressors use).
I'm not sure which is better for the Launcher Cyclops you will be facing soon, since their rockets do force and fire damage (and I don't know the proportions).
As a rifle user though, you should be able to stay away from danger.
Keep an eye on
this page, as it will tell you what weapons are now available to you (but avoid the freezers).