I forgot we had forums, so ill post crap here, instead of bugging lost and eldar XD
[Already suggested, common things]
-Getting chems/sp/scrap from killing zombies, as so our ammo is not wasted in vain.
-Dropping a headcrab roast that can sell for only 3,0,3, only gives 10-20 hunger, and takes 5-10 hp, as long as your hp is higher then 10, so you dont die from eating crabs.
-A gas mod, where cars run on gasoline, that has to be purchased from a class, or found around gas stations(via special nodes)
-I like bizzclaws radiation idea, but it would become tedious, when random places are radioactive, it would make things less fun, and not worth the effort
_perhaps if this was implimented, you could have a radiation meter(though we dont want to copy fallout, even though most people dont know the difference..), and you would gain a rad or 2 from eating uncooked beans, headcrab roasts found on zombies, or other things
[My own suggestions, warning, crap ahead]
-Knife stabs arnt an instant kill: minges will be minges, and its hard to stop this, but making it so you have a fighting chance to stop them before they kill you, would be nice.
-Coffee pots like plants, you have to hold them underwater for 2 minutes(exposing you to zombies, in hopes no one steals your coffee pot), after its been in the water, it turns green or something. When you press E on it after that, it drops a cup of coffee, with 5-7 available, you would have to charge it frequently, perhaps it takes a sp ever time you drink the coffee.
-i dont know how the turrets work, but if theres a function to make them aware, how about they run that every 30 seconds or so, to avoid beeping ;P
-I think it was aids that suggested this one, but having it where you dont lose any weapons or materials from dying via prop.
-a better system for radios and voice limiter, cause occ defeats the purpose of radios, and voice limiter, perhaps you can send your frequency to someone in a message, that prints to their chat, when voice limiter is on.
-a system that removes a % of resources from a player if they rdm, or kill them if they have no resources .
-perhaps some more guns/gun skins, ive looked for sorta rusty more wastelandish skins, but i havnt had much luck.
-I think like a hunting rifle, pistol made of junk parts, and equivalent crappy weapons would be nice, perhaps we should keep our eyes out for a modeler.
-Said before: When a player dies, a zombie spawns(already in game), and a tombstone spawns too, if the player gets back to this tombstone within 2-5 minutes, they get their guns back, if they dont, the grave disapears, and the guns drop.
-Grub collisions, i dont mind killing some peoples grubs when they dont tend to them, almost causing a server crash, but it happens a lot, people leave grubs out, and the nuggets crash the server.
-Grubs randomly turn into antilions(i like this, but theres MANY reasons its a bad idea[Grubs are usually against walls, inside rooms, the lions would get stuck, grubs are to spendy, the antlions would crush OTHER grubs, people would kill the grubs and claim it was an antlion, etc])
-A global wasteland time, just a random clock/ server time, perhaps you have to buy a watch, or its in your hud automatically, this would be usefully when telling friends your getting stuff, and when youll be back.
-most importantly, a new button, that shoots postman in the face, for being so annoying and bugging all the time, im sorry :)
[updated 11/26/10]
-Sleeping:
-Stepping on people: This should be disabled, like your nocollided, or it doesnt kill you, cause its damn annoying when someone just desides to run all the fuck over you, as a joke. THeres no reason for such a thing.
-Upon waking up, your screen fades from black to normal, laying on the ground, and ive seen some animations out there of getting up, shouldnt be to hard to do. All client side, as moving the ragdoll from laying down is way to hard.
-This is acompanied by a yawn, perhaps a special yawn depending on how long you slept.
-this would be to much work, but perhaps you should have dreams, at random points you see from your body laying on the ground for a second.
-This one i like, if you move around to much, you wake up, that way if people move you, you wake up, and THIS HAPPENS TO ME A LOT, fall off of something due to sleeping, you wake up as your falling, it would be pretty cool.
-Weve all thought it would be cool if a bed spawned when you sleep, but this is a bad idea, it could collide with things, as most sleeping is passing out, it could kill you or others, and it could crash the server if it glitches in a wall. - Bad idea.
Doors
-Doors should unlock themselves if they are not owned, noobies to the server NEVER understand that you have to own it first, and then unlock it, and they come complaining to me :)
Guns
-This would go along with the skills system, how it should be, the 5-7 lucky should.. actually be lucky, a random shot out of 10 would be 100% accurate, and very powerful ;)
-ALso ive heard a few complaints about the bad lands rifle, it fires slow, i know this is on purpose, but i think it should fire faster, and have less power, not like a full auto, but just a little faster.
-I like the idea of a tranq gun, thats cheaper then the p228, and has no ammo, it comes with 5 shots, and thats it, afterwards its deleted from the players inv. It could kill zombies, but also make you really slow or something like that, perhaps blind for a few seconds(skills system).
-Names above player zombies, when you die, it spawns a zombie, i think this zombie should have a name above it, "<name>'s zombie".
-Fix the mound issue please :P, gaurds and antlions spawn inside the mound, you already know about this.
-Wood/trees(Skills) it would be hard to do this without copying survival gmode, but its pretty much dead. You could have trees give wood, random trees spawned in places, and you could buy tree seeds, that with care, would grow into full trees. The wood gotten from punching said trees could be used to upgrade guns.
-I may have said it above, but chems for zombie kills!(also again with the random headcrab roast idea :) )
-Alternate vehicle, the 3 there are fine, and i know you want to decrease files to download, but 1 car couldnt hurt to much, ive been looking for a suitable one, and havnt found one, i will tell you if i find one, assuming you like this idea.
-A RADIO radio, not a walkie talkie, one that plays music, you could make it from scratch or copy from my wastelander radio e2, or losts radio, and im sure eldar has one :) It would shuffle songs(like losts) perhaps have a derma menu like mine, for selecting songs, and the songs would play in sequence, from the radio ;) - i could try and make one, as im attempting to learn lua, but it wouldnt end up very well XD
Thats all i got for now :P
Updated:1/29/11
-i saw a thing on toybox(http://toybox.garrysmod.com/ingame/?view=588-zombie breen), basically its a entity with Breen's model, and zombie animations, i think this would be awesome for the zombies, if they looked like you, but moved like zombies.
- chems for zombies, but instead, it would be only for the ones that were once players.
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-a stats menu, hidden around somewhere, all players can see it, and it would have stats on how many zombies, fasties, antilions, all the info about mobs and mounds,( perhaps hp of some of those?), players that died in the last X minutes, etc, its really pointless, but it would be interesting if you feel like wasting potential.
-i know this would be pointless, but(if you made the player zombies look like the player that they came from, this would be a must), if your a zombie, or fast zombie playermodel if changes you auto to a citizen, or such other model.
-did you ever think about the whole "sitting/sleeping" zombie thing? i dont think it happens normally, but the zombies have animations to sit down and sleep
-at some point a PM system would be cool, which would have options to send a message from the main menu, a button by their name.(perhaps a send radiostation button, that sends them a message saying "<yourname>:I'm on radio station <radiostation#>, please join me.)
Will update when i get new ideas.