Left 4 Dead 2 survivor bots: they suck; Valve sucks by extension

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
I realize this is old news to many, but hoooooooooly shit they are stupid; Miss South Carolina has nothing on them! I realize this is a "cooperative survival horror" game and it is best played with other humans, but sometimes friends aren't around and Live sucks at matching me with people smarter than bricks. The friendly AI is so weak I just spent about two hours trying and retrying the fourth leg of Dark Carnival on normal difficulty in Realism mode. Granted, this probably is the nastiest leg of any campaign (the running panic event at the end is just insane), but I tried no less than a dozen times!

Examples:
- The bots are entirely incapable of freeing themselves from a mob of common, even if all four of us are right next to each other. They just stand there and alternate casually shooting and meleeing, getting torn to pieces. Sometimes they don't even do that though, they'll just stand there like dumbasses, not resisting at all as they go from green to incapped.

- They're too stupid to wait until their health is at least yellow, if not red, to use first aid or eat pills. The result is that we never have health when we need it and they pop pills like it's 1969.

- Whenever a witch is near their path they all walk toward her, slowly. If I run by, they creep towards her; if I hang back, they inevitably wander her way until somebody gets instakilled (because it's on realism).

- They are incredibly inconsistent alternating between horrific aimbots and blind as Ray Charles. The witch they were just creeping toward for a full fifteen seconds? Coach misses her every damn time. But sometimes you're walking along someplace, one of them fires into some bushes, and a boomer explodes on the other side. They do the same in Versus and God does it suck.

- Coach will not pick anything up but a shotgun, and Ellis won't pick anything up but a sniper, regardless of their ammo situation.

- They come in two modes: stand there and look stupid, and unload on everything like they're Rambo and standing on an ammo dump.

- They like to let you handle things, meaning they won't shoot at that mass of forty zombies running down the corridor until they're already on your head, then they basically do nothing because they suck at being mobbed.

- They like to be reminded they're alive, so they'll edge into fire and acid repeatedly if another survivor is on the other side. If you're on advanced difficulty one instance of that is enough to take all of them down from green to low yellow, if you're on normal it's just fricking irritating.

- They are slooooooow; if you ever need to get a move on, they WILL be left behind. This results in scenarios where you're trying to wade through endlessly spawning common and specials in order to turn off an alarm entirely alone. How am I supposed to play a cooperative survival horror game if the damn bots are too busy playing tag with untold legions of the undead to help me get from point A to point B without getting my face clawed off and smashed into the concrete?

The easiest answer is that I just suck, but I regularly played through L4D1 solo on advanced, and regularly play through L4D2 on on advanced standard (or normal realism) with a partner. The bots sucked hard in the original, but the game has gotten harder and the bots simply have not improved with it.
Valve is a studio that we love to put on a pedestal, but seriously, what the hell? Playing solo on advanced standard is just as impossible as normal realism, and it's not much better with only one other human. The game just isn't playable unless you're playing with a group or enjoy playing a game so easy that your grandmother could beat it. And as I said before, the people Live matches me with are generally just as bad as the damn bots. It really is a cold day in Hell when I'm matched with decent teammates AND the opposing team is a fair match (neither too stupid nor too 1337).

Cliffs:
L4D2 bots SUCK
XBL consistently matches me with retards
WTF is wrong with Valve that they release a game with such horribly broken friendly AI?
 

KB

Diamond Member
Nov 8, 1999
5,406
389
126
The AI sure is bad. If you ever get a smoker to grab you and pull you behind a wall the bots will just stand in one place and watch you die. Really sucks.
 

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
They really are good games... as long as you have a friend or three to play with. Glad you could get a laugh out of my suffering though ;)

Everyone knows the AI sucks in L4D1/2.

Yes but the sheer quantity of epic failure continues to amaze me. Every time I play I'm just dumbfounded at how broken the AI is. Knowing and experiencing are two very different things; it's like knowing that the world's fattest man weighs 980lbs vs. sitting next to him on a plane.
 

cyphilis

Senior member
May 7, 2008
454
0
0
yes. multiplayer games usually suck without multiple players.

Here is what always happens to me.

If the other team has an AI team mate,.. they are a headshooting s.o.b. and I always get owned by the bot before I can attack.
If its my team with the AI team mate,.. the dummy will stand there and heal while I'm being smoked, hunted, charged, or just plain tore up. If they do actually help me out,.. they will then take some pills they have, heal themselves, then procede to not keep up and get killed. Stupid bots.
 

R Nilla

Diamond Member
Jul 26, 2006
3,835
1
0
In L4D1 I found Zooey to be the worst AI, mostly because she always grabbed the sniper rifle.

In L4D2 I've found Coach to be the worst AI, because he literally will just stand there and watch us die. I've been constricted by a Smoker, or one of my friends is pounced on by a Hunter, and he is three feet away just watching.
 

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
In L4D1 I found Zooey to be the worst AI, mostly because she always grabbed the sniper rifle.

In L4D2 I've found Coach to be the worst AI, because he literally will just stand there and watch us die. I've been constricted by a Smoker, or one of my friends is pounced on by a Hunter, and he is three feet away just watching.

I think all of the bots are equally bad about that, though Coach probably has more problems with it since he spends half his time reloading. And between the shotgun nerfing and his spraying shells like they're Uzi bullets he runs out of ammo halfway through a level, that really doesn't help either.

What I really hate Coach for is that he's fat, never picks up anything but a shotgun if he has a choice, and insists upon standing right in front of me. Having the shotgun in the front makes some sense, but he's always directly in my way, and he's too fat to shoot around.

I always play as Coach so I don't have to deal with all that (unless I'm playing solo, then I take Rochelle because she seems to be the slowest of the bots).
 

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
yes. multiplayer games usually suck without multiple players.

You have a point; but that line of thought has to stop somewhere, especially if they're going to release the game with the option of playing single player. What pisses me off is they give the illusion of being able to play single player, but the bots are too broken for that to actually work. They should either disable singleplayer or deliver a singleplayer experience that actually works, not give us half-assed features.
 

zerocool84

Lifer
Nov 11, 2004
36,041
472
126
The thing that sucks is that when people quit during a match, you're stuck with AI which is terrible. No way around it.
 

Fox5

Diamond Member
Jan 31, 2005
5,957
7
81
Hmm, strange, I've found the bots to be better than most people I play with online.
At least they don't shoot cars or wander off.
 

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
Hmm, strange, I've found the bots to be better than most people I play with online.
At least they don't shoot cars or wander off.

And their friendly fire doesn't hurt you, but they don't pick up throwables or defibrillators and they have all of the above problems. Sadly they are still better than a lot of people on XBL, but that doesn't make them any good, just not the worst :\

I mean getting hit with a Mack truck is a lot better than getting hit with a train, but it's still a bitch.
 

StrangerGuy

Diamond Member
May 9, 2004
8,443
124
106
L4D2 bots makes L4D1 bots look like gods in comparison, made worse that some of the forced panic events requires you to be on the move constantly and the bots will be trailing behind you by 20 yards and end up mobbed by the horde.

Only good thing about them is they know exactly where are their teammates are in Realism mode and they cannot inflict friendly fire.

But still, they are better than most pubbies who think rushing a horde with melee weapons makes them invincible on expert mode.
 
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StageLeft

No Lifer
Sep 29, 2000
70,150
5
0
Good rant. I've played a few levels after getting it yesterday. Overall I thought AI was not bad but I've not played the old one. Some of your criticisms are right. They do lag back. There should be an option to set them as "follow me like puppy" or looser. I've unfortunately found that since they are so bad at running with me it's best to make a stand (at least so far) and fend everything off. I imagine the game would be much easier with real people who could work better. So far it seems very playable with them, though. They stick relatively close and save me when grabbed, revive me quickly, etc.
 

PingSpike

Lifer
Feb 25, 2004
21,754
599
126
I've only played L4D1...but I see they haven't changed much. The most frustrationg thing about L4D AI is a lot of its problems wouldn't even be that hard to fix. The basics are actually pretty solid. Why they won't pick up grenades and then at least hand them to you is beyond me. (Please tell me they fixed this.)

One thing to note, I'd actually say the survivor AI is pretty good. Good being relative. Compare them to buddy AI in any other game and they're good, but that is actually a pretty low bar to set. Buddy AI in other games usually fits under one of two umbrellas:
1) Let them die because they are completely fucking useless and you'll just get killed trying to save them. Fuck that problem child.
2) OH FUCK! The game designer made this douchebag buddy AI a main character and I automatically lose if he dies. Now I have to try and keep this retard alive. If only the game had an option to rifle butt him unconcious so I could carry him over my shoulders because walking at half speed and fighting would be easier than tries to fight along side this super tard.
 

StageLeft

No Lifer
Sep 29, 2000
70,150
5
0
Why they won't pick up grenades and then at least hand them to you is beyond me. (Please tell me they fixed this.)
No.

I feel I have to return to this thread. I am playing through campaign on normal. I could blame this on the AI not being up to snuff on advanced, but anyway.

So I'm on the third level of first campaign. The mall. When the alarm sounds the zombies come constantly, believe me, they will not stop, they will keep on coming. The only way to stop them is deactivate the alarm up a few floors and this requires _running_, something the AI are incapable of doing. I don't see any good way to get through this level because when I start moving with any kind of gusto they end up getting way behind me, so then it's me separated from them every time. There is, in fact, no excuse for this. The game makes the main player the de facto leader, so where he goes so too should the AI. They just don't follow me aggressively enough to get through a level that needs running speed. This is a major buzzkill; I don't have xbox live gold right now for multiplay because I barely used it last year for that. I'm not going to play the level on beginner, but trying again on normal I know exactly what will happen. AI will drag their heels and I'll have to try and protect them as they gradually walk up to where alarm can be deactivated.
 

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
No.

I feel I have to return to this thread. I am playing through campaign on normal. I could blame this on the AI not being up to snuff on advanced, but anyway.

So I'm on the third level of first campaign. The mall. When the alarm sounds the zombies come constantly, believe me, they will not stop, they will keep on coming. The only way to stop them is deactivate the alarm up a few floors and this requires _running_, something the AI are incapable of doing. I don't see any good way to get through this level because when I start moving with any kind of gusto they end up getting way behind me, so then it's me separated from them every time. There is, in fact, no excuse for this. The game makes the main player the de facto leader, so where he goes so too should the AI. They just don't follow me aggressively enough to get through a level that needs running speed. This is a major buzzkill; I don't have xbox live gold right now for multiplay because I barely used it last year for that. I'm not going to play the level on beginner, but trying again on normal I know exactly what will happen. AI will drag their heels and I'll have to try and protect them as they gradually walk up to where alarm can be deactivated.

And now you understand the cause of my nerd-rage.

Here are a few coping strategies, in no particular order:
- a melee weapon, ideally a chainsaw. Spam it like a mofo, if you've got a chainsaw common will be no hindrance to you whatsoever (until it runs out of gas), (ideally) leaving the bots to shoot at any specials that show up.
- let them die while you make a break for the alarm. Unless you are unluckier than most they probably won't entirely die, you'll just have one or two incapped and the third brought down to really low health.
- grab an automatic weapon and spray it at head level while you run. Any uzi, especially with laser sights is actually VERY good for this. M16s are also good, but have much less ammo, and when you're talking headshots a hit is a hit.
- The exact opposite approach also works, spam your shotgun. It's more of a close range solution, but a decent one.
- If you are primarily dealing with long narrow stretches, spam sniper fire (sniper bullets will pierce infinite zombies in a straight line). It's important the area is narrow, if you get surrounded while carrying a sniper you'd better have a melee weapon or you're pretty well screwed.
- a pipe bomb works, but bile's clearing effect lasts longer. Throwing a molotov behind you helps some, but invariably further separates you from the bots.

In your specific situation I'd go with a combination of my first three solutions, but with an AK instead of an uzi. On normal (not realism) a single AK bullet will one-hit-kill a common zombie, regardless of where you hit them. It's a really good all around weapon, though a bit inaccurate.

Oh yeah, two more things:
Even without live you can still play splitscreen with one person, and you can still play LAN games, I highly recommend that whenever possible.
That kind of "running panic event" is not at all uncommon in L4D2; three of the five campaigns have one, and the second campaign (Dark Carnival) actually has two. Both of Dark Carnival's running panic events SUCK, I don't recommend trying either without another human.
 
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StageLeft

No Lifer
Sep 29, 2000
70,150
5
0
I finally got through this last night. The trick is definitely to have a sword or something like it and just hack at the front while the retard bots hang around at the back. Then I can rush ahead a little, I invariably get separated to some degree, and then just turn into a hacking turret until they catch up.

I did do the parish's demo level on advanced, but it seemed a lot easier than the mall, which really at the end got ludicrous with the amount of common.

EDIT: I did the dark carnival campaign with relative ease on normal as long as I used a melee weapon and always do my best to attract the infected.
 
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StageLeft

No Lifer
Sep 29, 2000
70,150
5
0
I just did all the campaigns now with bots. I find most levels are enjoyable on advanced but a couple I had to pull back to beginner to avoid constantly cursing the bots for doing stupid sh*t. Generally this would be where we have to make a stand and they have no concept whatsoever of being flanked. And of course I'm the only one to consistently using a melee weapon up close.Also, when the tank comes forget it they try and go toe to toe and get screwed. They also set the witch off so I just started setting her off instead and if planned for she can generally be killed before she reaches me. I would guess that two decent humans could outperform one decent human with the three bots. The game is still enjoyable with them but it is frustrating not being able to direct them in some manner.