Could be more fun to aim for fewer points. While 150 points is your "standard"
GURPS Fourth Edition character, remember that such a character is meant to be a significantly above-average hero. By comparison, most of the protagonists in zombie movies are . . . well, they're Joe and Jane Average. While they always prove more resourceful than ordinary 25- to 50-point people, they're in the 50- to 75-point range, really. For instance:
Karl the Mall Security Guard
75 points
You never did make it into the police academy. That's because you've always had a little weight problem and didn't do well on the physical. Their loss! You're not fat; you're big-boned. You're definitely buff enough to take down punks, and anybody who thinks you're slow on the draw is in for a surprise!
You faithfully go to the shooting range every Sunday, and you're doing okay at your Become a Private Detective in 30 Days! course. You're unfailingly polite to the ladies and an upstanding citizen (you don't even jaywalk or spit on the curb). Add all that to eight years on the Shamrock Mall Security Force and you're practically assured of taking command of SMSF once ol' Bob Marshall retires.
Well, you were. Shamrock was overrun by zombies, and they ate Bob's brain. They ate everybody's brain, actually . . . except yours. You kept your brain and your wits, and showed those punks what's what. Now it's payback time! The only difference between zombies and hoods is that you don't have to warn zombies before you open fire.
You're not naive – you know the Mall contains lots of useful stuff that people will need to survive. But there's no call to break windows and act like society has disintegrated. Doors have keys and shops have inventories, and it's important to show respect for the owners by taking only what you need and logging it in the ledger. If the government restores order, it'll be thanks to citizens like you.
Description: Karl is 5'11" and 250 lbs., 33 years old, and has unfortunately piggy features. He really is stronger and tougher than average, and not bad in a scrap. However, he's also short on breath and temper, and not as fast as he might be if he took off a few pounds.ST 12 [20]; DX 11 [20]; IQ 10 [0]; HT 11 [10].
Damage 1d-1/1d+2; BL 28; HP 15 [6]; Will 12 [10]; Per 12 [10]; FP 9 [-6].
Basic Speed 5.00 [-10]; Basic Move 5 [0]; Dodge 8; Parry 9 (unarmed).
Advantages: Fearlessness 1 [2]; Hard to Subdue 1 [2]; Higher Purpose (Keep "punks" off private property)* [5].
Perks: Dabbler (Criminology at IQ-2; Forensics at IQ-3) [1]; Penetrating Voice [1].
Disadvantages: Bad Temper (15) [-5]; Fat [-3]; Honesty (15) [-5]; Unattractive [-4].
Quirks: Minor Code of Honor: "Gentlemanly" toward women [-1]; Never hesitates to take charge if nobody else steps up [-1]; Overconfident about his skills – believes he's as good as any cop [-1].
Skills: Brawling (E) DX+1 [2]-12; Driving (Automobile) (A) DX [2]-11; Fast-Draw (Pistol) (E) DX [1]-11; Fast-Draw (Tonfa) (E) DX [1]-11; First Aid (E) IQ [1]-10; Guns (Pistol) (E) DX+1 [2]-12; Intimidation (A) Will [2]-12; Liquid Projector (Sprayer) (E) DX [1]-11; Observation (A) Per [2]-12; Search (A) Per [2]-12; Shadowing (A) IQ [2]-10; Tonfa (A) DX [2]-11; Wrestling (A) DX+1 [4]-12.
* Gives +1 to all Intimidation and, if it comes to that, combat rolls to get zombies and looters alike out of private shops and homes.