Make them force Turn Based combat, and they get PE 10, Sharpshooter, Action Boy 2, Ag 10.
Also, give them molotovs combined with Black Claw Radscorpion Venom, Str 10, Spray and Pray, both Toughness perks plus Adrenaline Rush, 300 throwing, both levels of pyromaniac. For melee give them Heavy Handed, 300 unarmed, Hit the Gaps, Lk 10, more critical, bonus HTH dam and Bonus HTH +.
Also BRoF and Bonus HTH attacks.
There, that'll do it.