People complain way to much about guns they die to. How is the Havoc and Devotion OP ? If it was so OP every single person would use it and I dont know one good person that uses this gun over the 301 or R99.
The energy weapons are fine and if you die to one of these its simply a error by yourself by not hitting all your shots or charging into a squad and running right into the gun.
Remember, the devotion is only meant to be a mid to close range gun and is pretty unstable and slow to use without attachments (Havoc is a bit better) and I dont die much at all from these energy weapons, so that must tell you something.