This is a Fallout 3 crossover, using my main character, Kara. Now, I may have accidentally given her more perks than I should have, so I'll just give you the information you need.
Level: 30
Faction: BoS
Companion(s): Dogmeat (Knows Fawkes and Star Paladin Cross)
Karma: Very Good
S.P.E.C.I.A.L: (Used Almost Perfect from Broken Steel) All 9s but Endurance and Intelligence, which are 10s. If this feels too OP I can change it.
Skills: Also messed with these. All I remember is that I got Explosives to 100, so I'll go with that and assume everything else is 50.
Perks:
Pyromaniac
Explorer
Mysterious Stranger
Better Criticals
Child at Heart

I may add more if I remember which other ones she got legitimately.
Weapons:
Firelance
Shishkebab (Primary weapon)
Heavy Incinerator
Slo-Burn Flamer
Quick-Torch Flamer
Tesla Cannon
Zebra Rifle (From a mod, think of it as an incendiary, silenced, automatic sniper)
Gauss Rifle
Mysterious Stranger's .44 Magnum (Again, from my tinkering with console. I generally only use it when I honestly can't be bothered to deal with a tough boss. Kara keeps it stored in one of her Power Armor's shoulderblades, and the bullets in the other, meaning it takes a while to get out and load. Just like me, she only uses it when there's no other choice.)
Armor:
Sunglasses
Prototype Medic Power Armor (Linked with her Pip-Boy, updated the AI into a full sentience. His name is Michael, but she calls him Mike, much to his frustration.)
Vault 101 Jumpsuit

Personality:
Completely insane, but the good kind of insane. She's generally a nice person, but isn't afraid to do terrible things for the greater good, as shown in the Pitt where she sided with the slavers. Though, that was mostly because she refused to kidnap a baby, no matter the cost, and plans on coming back to free the slaves once Marie grows up enough to make her own decisions. And woe befall you should you make her genuinely, truly, furious. It's only happened once, and let's just say they were never heard of again.