Left 4 Dead 2

Left 4 Dead 2

Left 4 Bots (Improved A.I.)
 This topic has been pinned, so it's probably important
smilzo  [developer] 10 Nov, 2020 @ 11:14pm
Suggestions
You can post your suggestions here.

Even if i don't reply i read here and take note of your suggestions every time and i will try to implement them if possible.
Thanks
Last edited by smilzo; 11 Nov, 2020 @ 8:02am
< >
Showing 1-15 of 521 comments
W.D. Gaster 11 Nov, 2020 @ 5:24am 
Heres a few of my suggestions:
- Bots should throw grenades 5 seconds after a panic event started (ones where infected spawn randomly and scripted ones) and can only throw grenades 10 seconds after another to ensure they arent wasting grenades
- Bots should stay away from fire or other hazards rather than walking in then walking out to reach the player but failing miserably
XxEeNnXxEeIi 11 Nov, 2020 @ 5:59am 
Originally posted by Phoenix Rose:
anyway to improve the "item transfer" system for the bots if possible? what i mean is, we currently can not swap the bots with pills/adren (if a bot has adren i can't give it pills in place of it's adren, vice verca) and i can not give/take a medkit from the bots.

i don't know if you are familiar with the "Gear Transfer" plugin for source mod, but that allows you to swap pills/adren, bots pick up pipe bombs, bial bombs, molotoves (like in your addon) and you can take/give bots metkits and they can just give you a medkit if you do not have one, all by either shoving with the item out, or looking at a bot and pressing "R" key, could be a setting or config for that? idk. i don't know if it's possible to "improve" your addon any further with this type of stuff.. but if it is possible, that would be interesting

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2267497761
___Schumacher__ 11 Nov, 2020 @ 10:51am 
Is it possible to fix the bots constantly jumping down from the truck on Dead Air finale? It looks like they try to refill ammo but they do it every 5 seconds.

Also, the whole "run right into a tank when trying to save someone" thing will certainly need fixing.

Next, i'm not sure if they can open doors/saferoom doors, i only saw them closing them after i opened 'em.

Finally, i believe the bots like to sometimes aim too low when shooting the witch, jockey and possibly the hunter. (Not sure if these are true)

One more thing; i tried randomly testing out the scavenging once, and once a bot got the can and to the generator, instead of pouring it in it just threw it a bunch of times and gave up.
Albeit it happened to be a custom map, is that the cause?
Last edited by ___Schumacher__; 11 Nov, 2020 @ 10:56am
Timmy 11 Nov, 2020 @ 1:21pm 
Bot weapon preference. Although L4D2 TLS updated L4D1 Survivor's preference. Their Tier 1 guns are still random.

I all came across the wiki saying Nick, Rochelle, Ellis, Louis, Bill and Zoey take SMGs while Coach and Francis take Pump shotguns. But I never seen him actually taking a proper preference.

Ellis and Zoey should have secondary preference of Melee weapons. Because they're snipers and Snipers are supposedly to have melee weapon with them as they being absolutely terrible with dual pistols. Also if there's way to make bot not to take AWP/Scout. As they're terrible weapon after all.

Maybe give each character their preferred weapon order from class:
Tier 2:
Nick: AK47>SCAR>M16 (Rifle Bot)
Rochelle: SCAR>AK47>M16 (Rifle Bot)
Coach: SPAS-12>M1014 (Shotgun bot)
Ellis: Military Sniper>Hunting Rifle (Sniper Bot)
Tier 1:
Every Rifle/Sniper bot: MAC-10 (Silenced SMG)> UZI (SMG)
Every Shotgun bots (Tier 1 preference): Chrome Shotgun>Pump Shotgun.
Last edited by Timmy; 11 Nov, 2020 @ 1:22pm
HK-47 11 Nov, 2020 @ 1:53pm 
@Goben A few suggestions for Tank encounters:

1. If a bot is incapacitated it should stop shooting the Tank so it doesn't get killed (it should shoot other targets though such as zombies and common SI).

2. If a bot is incapacitated and Tank is passing over it as it chases other bots they should cease firing on the Tank so it doesn't kill the incapacitated bot in rage.

3. If a bot is incapacitated and Tank is already smashing it, another bot with melee should run up to the Tank from behind and melee / shove it to get its attention then run away when Tank gives chase.

4. If a bot is incapacitated do not attempt to revive it unless (Tank Distance / Tank Speed) >= (Revive time + 2-3 sec safety margin)

5. If another bot has a defibrilator don't bother reviving the incapacitated one at all while Tank is alive.

Also, it goes without saying that bots shouldn't throw molotovs on Tank if it is too close to the incapacitated bot or player or if the fire would block the only escape route.
Last edited by HK-47; 11 Nov, 2020 @ 1:55pm
Robert 11 Nov, 2020 @ 3:43pm 
hey, when i yell Let's go on normal vocalizers , they dont start the generator even tho the voice command for Lead on puts em in front of the generator.
it would be nice if when i say let's go, they will start it if they are in position instead of typing bots go.
also sugestion number 2. if i say LOOK! at a witch, a random bots (preferably with shotgun) would try to get the witch .
also if would be nice if the bots would go for the generators on last stand 1, the 5 generators
Last edited by Robert; 11 Nov, 2020 @ 6:34pm
A Paper Clip 11 Nov, 2020 @ 5:34pm 
Add the ability to make bots lead on their own without being tethered to the player. I would use this feature during tank fights so the bots can evade the tank on their own instead of following me and getting hit by tank rocks.
Scratchy 11 Nov, 2020 @ 9:28pm 
I don't know if this was asked before..But that would be great if bots can shoot the smoker's tongue a few times instead of shooting the smoker itself or pushing the tongue.
smilzo  [developer] 12 Nov, 2020 @ 1:24am 
Guys most of the things you are asking aren't possible even if i had access to the game's source code lol.
Anyway keep posting, even if i don't always reply here i take note of all the things that can be done.
smilzo  [developer] 12 Nov, 2020 @ 1:25am 
Originally posted by Robert:
hey, when i yell Let's go on normal vocalizers , they dont start the generator even tho the voice command for Lead on puts em in front of the generator.
it would be nice if when i say let's go, they will start it if they are in position instead of typing bots go.
It's not "Let's go", it's the "Go" line which is not available in the stock vocalizer. You need a vocalizer addon for this.
DWBoyGamer 12 Nov, 2020 @ 4:40am 
Is it possible to make bots not throw molotovs on tank if it is already on fire? I would also like bots being able to pickup ammo upgrades (not necessarily deploy them, but carry them and give them to player like they do with grenades/pills/adrenaline and have player also be able to take ammo upgrade from them when desired) Also ability to command bots to use mounted guns would be nice, if thats possible (first vocalize bots name then vocalize look command while looking at the mounted gun)
Robert 12 Nov, 2020 @ 5:06am 
Originally posted by Goben:
Originally posted by Robert:
hey, when i yell Let's go on normal vocalizers , they dont start the generator even tho the voice command for Lead on puts em in front of the generator.
it would be nice if when i say let's go, they will start it if they are in position instead of typing bots go.
It's not "Let's go", it's the "Go" line which is not available in the stock vocalizer. You need a vocalizer addon for this.
thanks for replying but im asking if you can add the Let's go line to that too
Heladeras Tito 12 Nov, 2020 @ 6:43am 
When a player it's incapacitated, the bots helps the player, even if the player it's getting hit by zombies. This okay, but when the game it's on advanced, expert, realism, they tend to risk themselves getting hit too no matter what, and end up losing the game.
It would be cool if they can prioritize killing, then helping up.
Matadito 12 Nov, 2020 @ 9:40am 
I suggest that the bots do not always follow the player to be on the lookout for a special infected, or if one separates that another goes to look for it and that one stays with you, that they can use turrets and T3 weapons, or that having fire ammunition does not take explosive ammunition, or add so that the bots stay and that another bot follow you and also better behavior of the infected specials although for that the apocalypse mod is already I believe
Timmy 12 Nov, 2020 @ 11:10am 
Ask bot to get on the minigun. :)

When I spawn Louis on normal coop mode in earlier version of admin system. Louis will always look to get on the 50cal MG when he gets on. (the current admin system spawns a following one which will not mount on.)

Maybe command by aiming at one of the bot and use "Lead" command to make them go on the 50cal. But dismounts if:

-A teammate is attacked outside the gun's view
-Is being spitted on
-Is being attacked from behind
-A downed survivor

Oh and about the Lead command. It appears that in the passing finale. Those l4d1 bots will also go out and collect the gascans which makes the finale somewhat too easy.
Last edited by Timmy; 12 Nov, 2020 @ 11:11am
< >
Showing 1-15 of 521 comments
Per page: 1530 50