I want to start a enclave energy weapon user in a playthrough i want to know what i should do for his special i have all dlc all help is appreciated

Um... specialize in energy weapons, and.... talk to the extremely few enclave-related NPC's and do their quests? Bout it. Oh... yeah, as for how you play, you'd have to get Arcade Gannon as your companion, and you'd have to hate and fight almost everyone, since almost everyone hated the Enclave, if they were ever aware of them.

i just need to know what do for his specials know where to get the armor and weapons

The armor you can get from Arcade Gannon if you finish his side quest. The helmet you can get in a cave northwest of New Vegas although you will have to deal with Cazadors including a very hard one. There's also another place you can get the armor, northeast of Cottonwood cove is a place called Deathclaw promotory where the armor is located although the place is filled with Deathclaws and sometimes the armor doesn't show up so save 1st before entering that area.

As for weapons you'll definitely want to focus and Tag Energy Weapons and Repair. Energy Weapons because they are your main damage output and Repair so that you can get Jury Rigging and repair Enclave Armor with Metal Armor.

Strength 5
Perception 9
Endurance 5
Charisma 1
Intelligence 6
Agility 7
Luck 7

Charisma to me is useless and you'll get minus multipliers to charisma while wearing the helmet. You can then use the extra points from Charisma and put them in Perception getting your Energy Weapons skill up higher, lockpick as well so that you can get better items quicker. As for Traits, I'll leave that up to you.

I agree about charisma i can problably use more stregnth because i wanna get a gatling laser and ill use some science for more energy cells