Energy weapons are appalling, ammo for them is MUCH harder to find than ammo for guns yet they eat up ammo SO MUCH FASTER.
Just a few examples:
-The Gauss Rifle takes FIVE MF cells a shot and does crap damage;
-The Tesla Cannon/Tesla-Beaton Prototype takes FORTY-FIVE ELECTRON CHARGE PACKS (45!!!!) a shot and does terrible damage relative to the amount of ammo spent
-The Plasma Rifle takes 2 MF cells a shot but has much worse killing power than FO3 (can't even penetrate the armor of freaking Giant Radscorpions...)
-The Laser RIfle still only takes 1 MF cell a shot, thank god, but is utterly useless against any kind of armored enemy
-The Plasma Defender takes 3 EC packs a shot
-The Pulse Gun takes 5 energy cells a shot
-Gatling Laser has been transformed from one of the best weapons in the game to a laser machinegun that's terrible against any kind of decently armored enemy (i.e. any kind of enemy you're going to find lategame)
I just don't understand why they'd make the weapons that are supposed to be more powerful and harder to find ammo for eat ammo so damn fast. The sad truth is Melee/Unarmed really are way better because you can get Piercing Strike and weapons that do as much as ninety (90!!!) damage a hit and ignore virtually all enemy armor with the horrifically overpowered Piercing Strike. Melee/Unarmed are by far the most viable combat types.
And no, Plasma Rifles do NOT ignore DT. I got rolled by a freaking Giant Radscorpion because my Plasma Rifle was doing about 5 damage a shot to it...things sure have fallen a long way since FO3. I love Energy Weapons, but the truth is the only thing that really makes them viable lategame is the Plasma Caster and the Meltdown perk as it allows you to actually do lots of damage quickly.
The Plasma Caster is great, but nearly every other energy weapon has serious flaws. If they just didn't eat so much damn ammo, they might be more viable, but as it stands you use tons of ammo to deal pathetic amounts of damage. Might as well just grab a Ballistic Fist where you don't need any ammo and your DPS is
4-5 times greater than that of most energy weapons...