Merciless Survivor Bots (Left 4 Dead 2)

This time, I took some experiments by improving bot's aim ability, and...... Well, just as scary as its title, the survivor bots here are merciless. If I can put in difficulty level, probably they're equal to hard or advanced difficulty (expert is for sentry turret bots that have 100% perfect aim ability). The bots here have quite accurate aim. You may also try to challenge them in versus :D . One thing is, they can take most special infected for themselves & leave you only few. They're also merciless to common infected, more aggressive than usual bots.
.
And for this time, I tried another method to make the vscript mod via "mapspawn". So, this mod will feel more like an "expansion pack". You can combine this mod together with other mod with scriptedmode in it & it won't conflict. I also made it so that this mod can be used in both Last Stand version & the older version (just in case if there are people who still prefer the old one).
.
Aside of the merciless bots, I added some abilities for survivors (you can call this a "Mini Survivor Bots on Their Own Feet"). Here's the list of abilities:
1. "Bots Lead The Way"= They will walk on their own to the saferoom. This one is available on chat command feature & also when a player dies.
2. "Continuous friendly fire prevention teleportation"= when a bot gets shot by accident, he'll suddenly teleport behind the players.
3. "Auto Revive Warp"= 10% chance to revive the dead survivors if killing special infected, & 100% chance if killing a tank. This works on both survivor bots & players
4. "Bot Emergency Warp"= if bots are close enough to a tank or witch when taking fire, they'll teleport behind survivor players.
5. Bots will start with magnum pistols (bot only) & pills (all).
6. Survivors get full ammo when leaving saferoom.
7. Survivor rescued from closet has a random Tier 1 weapon.
8. "Healthy Jump" = when jumping, survivor can boost +1 health buffer if their health goes below 50.
9. Chat Command Feature. This feature has some helpful commands within. The list of commands includes the "Bots Lead The Way" & "FriendlyFire On/Off". The list is in the changelog.
.
Notes:
- This mod works on all modes as long as it allows addons & mapspawn.
- This mod can work together with mods that use scripted mode & modified weapon scripts.
- (12/29/20) Added "No Fall Damage" toggle feature on some chat commands.
- (12/30/20) Added "Kill a Bot" chat command.
- (01/11/21) Added some chat commands about grenade give & take,& portable weapon drop.
- (01/15/21) Added FriendlyFire On/Off toggle in chat commands.
- (01/24/21) Added 3 modes in the chat command, "Full Mode" (default), "No Warp Mode", & "Normal Mode".
- (01/27/21) Added more chat commands about bot picking melee weapon, & modified script when bots pick ineffective snipers.
- (02/23/21) Added 2 modes in the chat command: "Bot No Sniper" & "Bot Default Weapon". See the Changelog for details.

View Changelog (v3.0 Complete)

Tagged Scripts vscript bot improvements mapspawn mode bot enhanced aim ability

Updated: 02/23/21 • Views: 17,431 • merciless survivor bots.vpk (22KB)

Linked Content

Survivor Bots On Their Own Feet Alternative (with Enhanced Special Infected)

This version is a request. Some people asked me to do something about the bot regen ability ...

Write a Comment

Write a review...

RG4juan6 2 hours ago

que ago para que un bot lidere?

kurochama 43 minutes ago

Type "you lead" in the chat. You cam check the changelog for more chat commands.

Kel9509 2 days ago

This loot like a good mod, but I don't like all of this cheating as an add-on. Would it be possible to just have a mod with all of the improved aim ability for bots? Or maybe a way to disable all of these extra cheats, like in a config file it possible?

kurochama 2 days ago

Try "normal mode" chat command (no. 037 on the changelog). You can read the details on the changelog, about what features are disabled in "normal mode".

kurochama 2 days ago

& every chat command doesn't take effect unless you type it, so in other words, all "cheats" on chat commands are optional & up to players to use or not. So, if you only type "normal mode" in game, you'll play like the normal play

Kel9509 Yesterday

I appreicate the tip, but unfortunately it means that the bots still cheat a bit, right? They still can jump to get extra health if they're below 50, and they still start with pills and magnums (I'm not interested in restarting every level just to make the game fair). I think it'd be great to improve the AI of the bots without the extra add-on cheats. I primarily go after bots in Versus mode, and those cheats make the game "unfair."

kurochama Yesterday

If you read carefully on no.037, the answer is no. I named it normal mode because I disabled most beneficial features in that mode. All warp-related abilities are disabled, no pills & magnum anymore. & about the "Healthu Jump", I'm pretty sure that bots rarely jump, unlike human players. The health buffer boost when jumping is also just +1 per jump, so, if bot's health is 1, he needs to jump 49x to get 50 health buffer. So, I think this "Healthy Jump" won't affect much in the play especially versus. . Oh, there's one thing you need to be cautious when playing in versus, in "normal mode" chat command. The bots are still merciless even in "normal mode". You need to use different tactics unlike when you face normal bots.

kurochama Yesterday

So, "normal mode" should be what you're looking for in versus. Remember to restart the map after activating the chat command, so that bots won't get magnum in the first spawn. No restart is also fine, but the "no magnum" & "no pills" will work on the next round, as they are triggered on the first spawn.

kurochama Yesterday

Oh I forgot to mention. You only need to restart once. The "normal mode" works like a toggle, that stays active until you quit the game to desktop. So, no need to restart every level after activating "normal mode"

Kel9509 8 hours ago

It's good to hear that I only need to restart once. Is there a way to make normal mode the option by default? A configuration toggle or something?

Kel9509 5 hours ago

BTW - is there a way to see if the bots are really more accurate? I tried it in versus mode and honestly they're just as bad as ever. I know the mod worked because they warped before I use the command "normal mode".

kurochama 30 minutes ago

To make the "normal mode" work by default, you need either to modify the script of the Merciless Bots, or the cfg file in the game. If you use L4B as combination, you need to add a convar command in the "convars.txt" file. I don't remember which cvar should be added there. I'll check & tell you later when I'm online from pc, as I'm on phone right now. . For bot accuracy check, I ever checked in "Hard Eight" mutation (mutation about faster special infected spawn & more spwcial infected) on Dead Center map 2 & Hard Rain map 1, & they killed most special infected by themselves without my help. For versus, I'm still not sure how to check, but they can detect special infected faster than usual. Maybe, try to run or tail them from afar behind them on a long road or wide area.

JeySieGee 2 days ago

I can't believe it became this big :D

kurochama 2 days ago

It's been awhile since your last visit :D . & yeah, I updated some toggle chat commands here including the friendlyfire toggle chat commands. Feel free to try the new chat commands...

kinzan**** 3 days ago

uh i found a little problem, when i try to use this mod with "left 4 Bots (Improved A.I.)", this mods "you lead"command was useless(even in addonslist i put it first). PS：although the "left 4 Bots" also has the LEAD function, but i think the "you lead" function is better that L4B.

kurochama 3 days ago

Hmmm, could you explain more about the problem you had, & what made the "you lead" useless? Did it not work or was it bugged? There should be a laughter from the survivor if the chat command is typed correctly. Well, I think there's no difference if this mod if put before or after the L4B, as the features will still combine & work together.

kinzan**** 3 days ago

i mean, when the 2 mods r used together, and i use the command "you lead", bot will laugh yes, but they will not lead (AND compared with the leading function of the 2 mods, i prefer the leading function of your mod, becuz the leading function of your mod can slow down as the player slows down, while the leading function of L4B bots just rush all the way to the safe house and ignore the player

kurochama 2 days ago

I see... Probably we used different bot commands for the "lead" command. Looks like you noticed it, that my "you lead" chat command can make bots wait for a moment if they go too far or a player shoots a zombie. I let it that way so that they can still adapt to the player's pace. They'll keep moving forward & shooting zombies till they arrive at the saferoom, as long as a player doesn't shoot a zombie or use "stay close" chat command to make them regroup to the player's location.

kurochama 2 days ago

I'll try to test it soon to check the problem on "you lead" command when 2 mods are combined (especially when combined with L4B).

JeySieGee 2 days ago

Bruh you can just use this one, basically it have all the features of that you use.

kurochama 2 days ago

@kinzan: I tested & just as you said, the bots didn't want to lead. After checking for awhile, I figured out that the problem was what listed in "convars.txt" in the "leftforbots" folder in the game folder. That text file works like the toggle, so any convar commands written in it will stay active & return to the default value even if you change some during playing. After I did something to that file, the "you lead" command works as usual. . So in short, this mod actually works, but because the toggle lock system in other mod in "convars.txt" file, the "you lead" command can't work. But I'll give you solution & how to enable it. Just follow these instructions: 1. Search "convars.txt" file in your L4D2 game folder. The location is in this directory: "......\left4dead2\ems\left4bots". 2. Delete following commands in that "convars.txt" (these following commands are what cause "you lead" not to work): >> sb_battlestation_human_hold_time >> sb_escort >> sb_path_lookahead_range >> sb_separation_danger_max_range >> sb_separation_danger_min_range >> sb_separation_range 3. Save the editing (press Ctrl+S then close the notepad window). After following those instructions, you can enable "you lead" chat command even when you combine this mod with the L4B mod.

kinzan**** 2 days ago

Okay, thank you very much! :D

21hellyeah12 3 weeks ago

Hello I'd say this is the best Bot mod that I've ever use! But is it possible to update the bot to be able to pick up Defib units and use it to dead bot or players?

kurochama 3 weeks ago

There's already a mod about that, & someone else made it. You can check "Left 4 Bot" mod. & I think you can also put this mod together with that mod & they won't conflict to each other. This mod is like an "expansion pack", so this will work together with other bot mods, as long as they don't use "mapspawn.nut" or "mapspawn_addon.nut" file inside.

21hellyeah12 3 weeks ago

So is it compatible like "Left 4 Bots (Improved A.I.)" made by Goben

kurochama 3 weeks ago

Yep. Try it. It should not conflict. Both will work together.

kurochama 3 weeks ago

About few minutes ago, I tested by enabling both this mod & that "Left 4 Bots", then I killed a bot using a chat command. Then, another bot carrying defib came to use defib on the dead survivor. So, the conclusion is a yes. I can confirm that you can combine this with "Left 4 Bots" mod, & "Left 4 Bots" mod will do the defib feature while this mod also enable the merciless features etc.

21hellyeah12 5 days ago

Hello again gotta ask is there a way to stop the bot picking up the sniper (Ellis and/or Francis)? The bots won't even shoot the sniper if surrounded.

kurochama 5 days ago

Well, this mod only changes the snipers that the bots pick to semi automatic sniper (awp/ scout to hunting rifle/ military sniper). To make bots stop picking snipers, there are several ways like changing the sniper weapon scripts to lower tier or the same tier as grenade launcher or m60 (bots never want to pick those two weapons), making a mutation that removes/ replaces the snipers, or enable another bot mod that allows bots to avoid certain weapons. I'm pretty sure that other bot mod "Left 4 Bots" has this kind of weapon exclusion feature. You can combine this mod with that mod so both mods will work together. Probably I'll try to add that weapon exclusion feature later when I find any alternative ways to make it via "mapspawn" script.

kurochama 3 days ago

I updated the mod & make some chat commands that might solve your problem about bots picking snipers. You can check the changelog for details about how to enable/ disable the command.

Post Comment

My Rating:

Post Review

Bots stuck

By Ainur_Iman last month

Bots just stuck on the wall everytime they fight with the witch

This addon is a cool expansion

By JeySieGee last month

I see that the bots is basically an aim bot. Anyway love it!

Very Useful Mod

By KarlxSkull last month

Thanks to this mod I finished my first single-player tank run :3 it just lags a little when the bots teleport at you but that's understandable. :) I tried left4bots and Improved bots only this one helped Thank you :)