1. Antimatter Yes I know that it's next to impossible to create and store, but look at what you get for the extreme cost. You need only a millionth or so of a gram to come within a reasonable distance of the zombie. Of course you'll have to GTFO, but they will be gone. I have no idea how you'll procure this (unless you happen to own a particle accelerator), store this, or safely use it but its well worth the cost.
2. Laser Why would you run and fight a zombie hand-to-hand when you can simply focus a beam of light on them.
3. M/28 Mosin-Nagant Yes its a little old and you could get something cooler with your money, but this is a great weapon. It was good enough for the Finnish army when they had to fend off the USSR, so it'll be good enough for you. This was Simo Hayha's weapon of choice. Remember him? Thats because he's in Man Country.
4. SOV 3000 Dragon Skin Bulletproof Vest No, I am not getting paid to have that up there. However, this can repel a round from an AK-47. I'll let that sink in. You can parade through a combat zone with a lot less to worry about with this simple fix.
5. M1A1/2 Abrams Impossible to procure, but you'd be one hell of a force to reckon with.
6. Robots They can't even get infected. So as you drive you're little guy around the zombies will call you on your cheap strategy. Its like Battle Bots and Left 4 Dead got together in a drunken stupor after a night of partying. However you have an extra risk with these guys. If they become self-aware at any point they will realize, depending on the timing of this catastrophe, one of the following: A) We can't get infected, but you sure can B) We're robot, and soon-to-be your overlords C) You have the potential to become a zombie. Since I am programmed to eliminate the zombie threat and you are a potential zombie my logic is to prevent that from happening. By eliminating you and not by protecting you.
7. Private Army Have someone else do your dirty work in a Bond villain scheme. Be wary that your henchmen could be infected, rebel, or get beaten with some cheap karate moves.
8. Napalm Molotov cocktails with extra AoE.
9. Mine Flail A giant and heavily armored truck with several large spinning flails attached to the front of it? I think I can dig it.
10. Crane Pick up heavy things and then swing them around or maybe even toss them. Hopefully you'll have had the training to use this and enough stuff to swing about.
11. Walls Not house walls you idiot. I mean like Minas Tirith. How in the hell is a zombie going to scale that when they aren't even smart enough to use a ladder? They could try to rip apart the massive door, but they'll have to work against your other defenses at the same time. The only reason they get a lower ranking is the construction factor. Not a lot of people have massive walled in homes with gigantic walkways and turrets to defend in case of this crisis. Building will take a while and apparently this sort of thing isn't appreciated by your neighbors.
12. Bulldozer Imagine the mine flail without the flailing. You do get the bonus of being able to use it for its intended duties also.
13. Trebuchet A catapult, given that you can find stuff to toss, is a great weapon for when your attackers huddle together and move like syrup in Antarctica. I doubt you have one of these so you had best get to building.
