The World War Z book did a good job talking about this. Things like zombies not being affected by overpressure from explosions making bombs less effective, and then ultimately the true downfall of the military: bad leaders with no clue what they were doing ordering soldiers to their deaths in stupid ways
Yeah I remember that part! They brought SAM launchers, radar, jammers and camo netting to a zombie fight.
I really like how they showed the military adapting though. Flying C-130s sparingly to save fuel. Running attack dirgibles, and returning infantry to formation tactics with .22 rifles and bite resistant suits.
"Here's the purchase order. Good to pick up next Friday?"
Not a fan of the movie, but Brad Pitt taping magazines around his forearms for armor was brilliant. Light, 100% tooth-proof, easy to shed, easy to replace, all that.
Conventional infantry tactics don't really work against zombies. For instance, suppressing fire; you can't suppress zombies, because they don't care if they get shot, and it only matters if they get shot in the head. You can't inflict any amount of damage that's going to force a retreat. Artillery and bombs are only going to effect them if they're in the direct blast zone; shrapnel still has to penetrate the brain.
Your best bets are likely going to be napalm and flame throwers. I'm not sure how many napalm bombs the US military has, but I'm pretty sure that they don't have tons of flamethrowers.
Conventional infantry tactics from 1945 certainly don't work. We haven't fought like that in forever.
Modern infantry tactics would be "Sit inside my nice warm armoured vehicle while the gunner shreds everything with a 25mm autocannon." And I think that would work just fine against zombies.
Also any competent military shouldn't have the slightest difficulty getting headshots on a slow moving target that isn't trying to evade or use cover.
For instance, suppressing fire; you can’t suppress zombies, because they don’t care if they get shot, and it only matters if they get shot in the head.
This makes my teeth itch. I realize that this is NCD but...
Without claiming outright magic damage to muscle and bone still matters. A bipedal creature absolutely requires certain muscles and bones to remain upright. If a zombie gets hit with a rifle round that blows out a 3" chunk of its spine then it can't stand up. That kind of damage is easily done with a 30 caliber rifle round (7.76) let alone the venerable .50 caliber. Even the relatively small .223 / 5.56 that's carried by standard infantry will remove muscle and break bones.
Your average grunt is going to figure out real quick where and how they need to shoot in order to slow or stop these things. If head shots aren't possible and it takes too much ammo for body shots they'll start aiming for the knees and ankles, because again that zombie can't run / shamble at you if it has no feet or it's ankle or knee has been blown into a hundred pieces.
So when Tommy Tactical or Isaac Infantry mag dumps 20 rounds of 5.56 into a zombie it may not be "dead" but it sure as shit has taken critical damage to its musculoskeletal system and will almost certainly not able to stand upright. Ol' Mike the Mighty on the Ma Deuce will reduce a hundred zombies into a quivering pile in 60 seconds or less all by himself.
That zombie horde will be a lot less dangerous and easy to clean up once it's crawling on the ground with all the speed of a toddler.
...We're still talking about zombies, right? Animated corpses that have an overwhelming need to consume human flesh, and can only be killed with overwhelming brain damage? I'm pretty sure that's the definition of magic right there. If you're talking about something like the cordyceps fungi--which, to infect humans, would still need some kind of magical power--you still have a very, very finite limit on how long a 'human' will survive (about four weeks without food, give or take), so you should be able to just wait them out, rather than needing to proactively kill them.
That zombie horde will be a lot less dangerous and easy to clean up once it’s crawling on the ground with all the speed of a toddler.
Less dangerous, yes. Not not dangerous, depending on which version of zombies you're talking about specifically.
Artillery and bombs can shred/destroy the body, making it hard to move, if there is enough body left to move.
A .50 to the arm isn't going to slow a zombie down, but the knee? Kinda hard to walk with one leg. 25mm chain gun is probably going to mist a few bodies.
Artillery is an area denial weapon. If you have a hoard a couple 105 shells are going to take apart rotten flesh with ease. Mortars are similar and more mobile.
Mine fields are effective as a way to immobilise and thin the herd.
Choke points work exceptionally well, and claymores can be rigged at head height.
Zombies can and do drag themselves, or even worm their way across fields. Until the brain is destroyed, they're a threat.
25mm chain gun is probably going to mist a few bodies.
Sure, but, again, unless you hit the head, they're still a threat. And meanwhile, you've blown through a thousand rounds of ammo.
Artillery is an area denial weapon.
You can only deny area when people aren't willing to charge into it. Zombies aren't doing massed charges though; each and every zombie is Leroy Jenkins, acting entirely independently, and with zero foresight.
IMO, the most effective method weapon would be a steam roller, as long as all the mechanical parts and the operator cockpit were completely covered so that a zombie couldn't damage anything. Like, say, some of the mine removal vehicles. Moving around is going to attract the zombies, and then running them over would eliminate them.
I think tanks would be their best bet - mounted machine guns and can carry lots of ammo, and if they're surrounded and about to be overrrun then they can just drive away - through the zombies. It's a tank, it has torque up the wazoo.
Actually, no, barbed wire would be their best bet - the blade doesn't have to move if the zombies slice themselves apart on it.
A modern military is a movie killer in many situations.
Kaiju? Don't make me laugh.
"Flood torpedo tubes 1 and 3."
And zombies in America?! LOL, all my neighbors have a gun or two. Black, white, young, old, liberal, conservative, all of them. We could probably field something with a scope on every rooftop.
Congrats, now you have irradiated zombies. And any not truly destroyed by the explosion would effectively just get knocked down by the shockwave and get right back on up.
...yes, which is what the military industrial complex wants, which is why they developed the virus! It creates a forever war, with no real victims. Only an ever expanding number of enemy combatants!
Think of the profits! The constant sale of more weapons!...and they'll never get into MY bunker! Because it's in New Zealand!