A project I started sometime back in November of 2008. I hadn't seen any real DOOM SWEPs, so I thought I'd get to work on them.

Included Weapons:
-Fists
-Pistol
-Shotgun
-Super Shotgun
-Chaingun
-Rocket Launcher
-Plasma Gun
-The BFG9000

Included Spawnable Entities:
-Clip
-Box of Bullets
-Shotgun Shells
-Box of Shells
-Rocket
-Box of Rockets
-Energy Cell
-Cell Pack
-Berserk Pack
-Health Bonus
-Stimpack
-Medikit
-Armor Bonus
-Armor
-MegaArmor
-Supercharge
-Megasphere
-Invulnerability
-Radiation Shielding Suit
-Light Amplification Visor
-Barrel
-Cyberdemon

I've taken the time to make these weapons work as closely as possible to the original weapons from DOOM and DOOM II.

Download:

NOTE: This addon is incompatible with the current version of SpiderMod due to an overwrite of a gmod function (DamageInfo()) with a table within SpiderMod.

Video:

View YouTUBE video http://youtube.com/watch?v=jfhlOXd2JpM

And of course, id Software is credited with all of the original DOOM and DOOM II sounds and textures (as well as two of the finest shooters to ever grace the history of computer games).
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01/13/2010 - 1.3 (newest version)
-fixed weapon viewsprites being misaligned after a recent gmod patch
-fixed entities flying off in an arbitrary direction when killed
-fixed a weapon creating multiple effects per tick at higher pings
-fixed some sprites animating incorrectly
-fixed some textures not using the proper VTF flags
-fixed view bob appearing while in vehicles
-fixed this addon causing camera issues with the shuttle addon
-(hopefully) fixed the Chaingun not animating properly on some computers
-(hopefully) fixed the Plasma Gun firing incorrectly on some computers
-(hopefully) fixed textures spilling over the top and causing a horizontal line through the middle of the screen with a doom weapon equipped on some computers
-changed the way clientside prediction is done in singleplayer
-updated the Plasma Gun to use trace hulls instead of tracelines
-updated the weapons to use damage types
-updated the rendering code on the rocket to draw it correctly when viewed from any angle
-updated the rocket launcher to use the correct cooldown
-recoded and added entities from the doom pickups addon
-added Cyberdemon SNPC
-added explosive barrel SENT
-added teleporter scripted effect
-added option to disable additive plasma (cl_doom_plasma_additive)
-added radiation shielding suit item
-added world sprite, spawn icon, and kill icon for the pistol
-added spawn icon and kill icon for the fists
-added code to reassign the owner of a rocket to a player that catches it with the gravity gun
-added lag compensation to the pistol, chaingun, shotgun, and super shotgun
-added HUD notification system that the items and weapons now use (can also be called by other scripts on the client as doom.AddHUDText(textstring))
-added fix for the light amplification visor (if you have gm_cvar2 installed on your client the addon will allow the LAV to use fullbright instead of dynamic light)
-added server convar sv_doom_spawneffect
-added server convar sv_doom_ammocaptype
-added server convar sv_doom_backpackstyle
-added server convar sv_doom_itemlifetime
-added server convar sv_doom_deathscream
-added tag that shows up in the server browser
-updated the way weapon sway is calculated
-updated the way view bob is calculated
-restored the BFG Ray effect to displaying even if it didn't make a kill
-capped rocket velocity
-modified chaingun firing
-most weapons are now usable by NPCs
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I thought this was released awhile back? Anyways nice work dude. Gonna give this shit a try now.

edit: Got a little extra shit on the machine gun texture :)

http://i42.tinypic.com/1ze8nsy.jpg

Simply amazing. Good job.

Hell yes.

HOLY FUCKING SHIT!!!!!! EPIC!!!! Downloading! :D

Damn that's a lot of fixes. Nice work.

Awesome it even has the nasty ass models.

Awesome! I made a BFG 9000 a while back with the same mechanics and sounds as in Doom 2, but it didn't have the model or sprites.
Very nice job on all of them.

These are hard to aim, especially the BFG

pics please?

these are awesome, my father passed by the door and heard me playing with them and sat down watching me play with them. great job!

It takes only two words to describe this swep pack: FUCKING. AWESOME.

These are awesome, you are awesome. Doom II was my first FPS.

As it was mine. Awesome.

Pictures in the download link

Now to make a PP effect to give the 320x240 illusion.

this is awsome, i am having tones of fun

Wonderful and innovative. I like how everything is a sprite, keeps that doom feel.

Nice, now if someone also remade some of the doom levels for source engine.

http://garrysmod.org/downloads/?a=view&id=44045

E1M1.

Now we need the hud and some npcs.

I downloaded it.
One day I will test it out.

Could you make the monsters? that'd be epic to have, say the Shotgun guy or the Cyberdemon as an SNPC

This is 1 week old but I´m going to say it anyway! FUCKIN AWESOME!!

Just tested them out.
Awesome weps, but there's a problem with the Plasma Gun.
I start firing it, it fires one or two shots and then it goes into the "end firing" animation, while ammo is just disappearing until I stop firing it.
I think someone else had this problem too.

I had this problem too. I solved it by deleting some of my mods.

What kind of mods?

Super shotgun is rad. I'm gonna see if I can fiddle this into working with gibsplat or dismemberment mod, because the BFG and chainsaw don't explode anyone. It kind of sucks just using the greatest weapons ever and watching people just plop over dead.

I don't know. I just deleted all of my mods, checked to see if it worked, then brought my mods back one at a time to see if anything would cause it to stop working properly.

This would go great with my old GDOOM Sents.

Now make DOOM SNPC's.

That would look pretty retarded unless the sprites were resized. Doom's sprites look terrible in vector.

Ghor, could you tighten the Shogun and Super Shotgun's cones a little?
The Super Shottie's firing cone feels a little too ridiculously wide.

What? I've got a semi-working Cyberdemon NPC and it looks perfectly fine, you can even see it one one of the screenshots. I'll try to get it out at some point, but the problem is that it has awful hit detection right now. Rockets and BFG shots fly right through it as well as any other projectile. It's also completely vulnerable to the effects of combine balls.

The other thing is that it's a much more considerable investment of time to rip, realign, give transparency to, and compile into one .vtf all the frames that make up an NPC. I have another much bigger project I'm working on right now that I really want to see finished. What I can say is that if you want to play DOOM, play DOOM, not GMod trying to be DOOM.

When I collect a few more bugs or any feature changes that need to be made I'll put those into a new version, maybe with the cyberdemon.

Now all we need is some Quake sweps, then I will rest happy.

Edit

Actually, i have quake myself. Do you have the steam version of Doom or...?

thank you for these sweps. this will be very useful in my personal "quest" to create the most nostalgia-ridden screenshot ever!
and the loading time of about half of a second made me grin.

Awesome sweps!Make Wolf3d sweps,too :D

I would NEVER have thought to superimpose the image files onto the HUD for the models and animations like you did.
That is very clever, VERY nice work on this.

Very impressive, I also perticulary liked how you included the sprites on guns and how you did the effects on the projectiles.

Yay, now we can wield the Big Fucking Gun 9000, in classic Doom style! SOMEONE MAKE A DOOM SERVER QUICK.

I had those on my server for quite a while but decided to remove them as clients had to download assload of stuff just to get the doom textures part of my server's already long download list.