After having done single-segment speedruns of various games for around 3-4 years now, 2021 has somehow persuaded me into heading down the paths of my predecessors. I am known to run old games, the games I kind of grew up with and Doom 3 RoE is no exception. Alongside that, one of my fellow speedrunners, Kibumbi, decided to continue and finish one of his ancient projects started back in 2008. I am talking about the Doom 3 Main Campaign segmented speedrun on Nightmare. At the beginning of 2020, there have been strategy developments made by me and that yielded me the first Nightmare run under 59 minutes in the BFG Edition. All of those strats are usable in vanilla and I started helping Kibbo do his thing, while at the same time thinking that I should do the same, given the fact that I had just finished running Resurrection of Evil BFG Edition and got WRs in both Recruit and Nightmare. I was surprised at how Nightmare is actually faster than Recruit since you have all 3 power-ups from the get go, which are Slow-motion, Berserk and Invulnerability. I have also found new strategies for this run and I wanted to see how low this could go compared to the 31:46 groobo has from a while back. I was really surprised by the final time being a low 27.
Every paragraph is representing a segment.
Level 1 / Main Excavation
Slightly annoying sometimes, but I had a good route to not jump into every rock and lose all my momentum. The Forgotten One boosted me around the corner as well and then I just strafe jumped as cleanly as I could while also getting some momentum from going a bit high off that debris, not having to manage stamina just yet. I would have slowed down anyways, but colliding with that light stopped most of my momentum, enabling me to precisely click the panel. Dumbass me forgot to pick up the shotgun.
After the elevator ride, I tried to get the best movement I could and you can get all sorts of crazy boosts while dropping down into the room after the door, but I didn't want to play the lottery so I took the first decent segment I got. Teleport boosted to skip most of the platforming I would have to do.
A bit of grabber randomness. Most of the time it just doesn't move the boxes out of the way. Then I just did some decent movement with releasing shift a lot mid-air so that I have enough stamina to ride it out till the end. That will be the theme of the whole run when I am not using the artifact.
Final time 1:09.217
Level 2 / Erebus Dig Site
I cut off the segment to not lose my mind watching the elevator intro while also having the spawning Vulgars not boost a barrel in front of the door.
Some tricky jumping and grabbing the grenades from the darkest corner in the universe while also wasting as little time as possible healing. Saving a fraction of a second by not killing the vulgar with a barrel but rather passing through him since I can and then a funny, unplanned projectile boost into the cutscene
The boss fight can't really be sped up since you have to rely on the cannons.
Then instead of doing the annoying barrel skip I just strafe jump with the berserk over the huge gap with very smooth platforming to get onto the ladder. There are enough artifact charges to do this.
The last segment got even more tricky since I realized I forgot to take the shotgun in the first segment of the run, so on top of doing the movement almost perfectly and lining up the nade that kills 2 vulgars, I also had to pick up an enemy's shotgun up and then drop down in a specific way to not die and only on the attempts where the machine gunner shows mercy which is quite rare. That segment was the first real grind.
Final time: 2:18.049
Level 3 / Erebus Labs
I grabbed everything I could get my hands on and split the segment once again.
The movement in this segment was tricky up until the pillar room and I must say, I could have done it better. Then the easy pillar strafe jumps with the artifact, used its speed to slope jump over a vulgar spawning cutscene trigger which saved me some time and a charge.
Killed a machinegunner and vulgar to not have them gang up on me later.
Timed the charge so it lasts up until the elevator. Getting stuck after the health station, which I go to since I want to wait for the shotgunner, is actually good because the dead shotgunner's body helped leave the door open.
No idea how I skipped the vulgar waiting for me at the elevator exit. I must have either saved at a particular point to somehow skip the trigger. You can still hear the chanting though. Either way, I was pretty happy about it. After that, managed to get pretty clean movement.
It was tricky to jump over the railing cleanly without bumping into something and then I figured I would use the barrels to kill the vulgars and save grenades if I needed them later. On top of that, you can make the barrel explode and kill enemies before they visually appear, so that was also a plus.
Final time: 3:04.434
Level 4 / Erebus Control
I needed clean movement through the elevator platform and then to kill the 2 mars sec as fast as possible with the grenade to trigger the door to unlock. Then a strafe jump chain to the 2nd door while killing the vulgar.
Artifact charge here and then tricky navigation through the growth tunnel, cool barrel boost, took the charge and the PDA, some more tricky navigation including strafe jumping down the stairs while not hitting anything and clicking on the panel while flying.
Used a vulgar spawn to boost up the platform. In this segment I had to really take care of my stamina because I needed it for the last segment in the level where I can't bunny hop. Dropping down onto that rail by the end was tricky since an imp crawls up from there and blocks most of space you can actually traverse.
I think this way of jumping over the grinder is slightly faster and definitely saves more stamina. After the door unlocks, most of the time the vulgar would just jump at me and instantly kill me so I had to play until I got lucky with his positioning and the double barrel shotgun spread. Not to mention clicking those damn panels ASAP after the camera bobbing from the fall I just took. This one was slightly annoying.
Somehow I squeezed more time than I thought I would here with that jump before the health station and by running against walls and pipes. Conveniently enough, I could still keep clicking to recharge health while starting to jump towards the exit.
Final time: 1:29.8
Level 5 / Erebus Research
Using the artifact throughout the first segment because it is faster since there are no slow opening doors and to preserve a lot of stamina. There are artifact charges everywhere to instantly replenish the artifact after usage so it was a no-brainer.
The first jump off the railing goes over a trigger for spawning a maggot. It’s faster and I don’t take any fall damage. This segment was faster without using the artifact because of too many slow opening doors. Some precise strafe jump chains taking care not to hit spawning enemy hitboxes which are abundant. Then a nice boost at the end saving about 2-3 seconds from the cherub spawn boost that I would have done otherwise.
Final time: 1:23.48
Level 6 / Erebus Station
This boost was really annoying. I took my first pause from running the game because of this. You can get an insane boost which will get you directly to the airlock but I was not prepared to waste my whole life on it so I took the 2 barrel boost segment. You can also get boosted with the artifact but then the airlock opens very slowly.
From the airlock I had tricky movement. I was taking care not to get stuck anywhere which almost always happens because of the tight spaces and spawning enemies. Then sound in the game just died for some reason and I tried to redo that segment and I could not match it anymore so I left the audio glitch in.
This was one fun. I managed to do very fast paced shooting and clean movement. Flashy stuff. The boss fight is very easy – just 5 punches and you’re good. The tricky part about the boss fight was actually skipping the cutscene after you beat him with losing the least amount of time.
I split the segment here because the bridge to the sky tram has weird and unpredictable physics properties. That’s why I don’t jump going in.
Level 7 / Phobos Labs 1
I split the segment to not watch the beginning every time.
I used the artifact, got the charge back immediately and did good movement. I also tried to kill the Vulgar to not have him jump me when I come back into the room later in the level. I ended up only wounding him, which was good enough. Then, used the 2nd charge and jumped onto the barrels which slid me to the other side of the railing, saving 1 jump from happening.
There is the rocket launcher! As soon as I got it, I started using it. Luckily, there is no shortage of ammo for it. There is more of it in the later levels though so I tried to get all the ammo in my way.
This worked out extremely well. I got through those Vulgars perfectly clean. There was another audio glitch while opening the door to have a Revenant greet me. Then I just get out before the door closes and ride until the end.
Level 8 / Phobos Labs 2
I took the artifact charge since I needed it. Then I used one since it was faster and to not have a bruiser guard the door. I went through the window frame only once since it was a huge pain to get in from outside of the office.
Oh man, this rocket jump. This was the only one I got. I found this skip in the BFG Edition where it is easy. You need to do it absolutely perfectly here or else it just won’t work. I even forgot to reload the rocket launcher when I got it since I was so surprised. It looks a bit messy but it actually lost only a few frames to it.
This segment was also difficult. The machine gunners were a pain in the ass to kill without losing my momentum and then elevator skip wasn’t a picnic either since you’re jumping from the smallest platform in the universe.
The boss fight could have been done faster but I valued artifact charges and 2-3 seconds lost since I was thinking ahead. Basically you need him to do certain attacks which can be interrupted to save time. It was still fine though as I am leaving with 3 charges.
This skip saves a little bit of time and it was quite a grind to get this one correctly. It also doesn’t help not having any stamina. There are actually 15 rockets on the catwalk right at the end of the level which you can’t get to by normal means. I wanted to get them by jumping on top of a revenant but when I realized that there are plenty of rockets later I scrapped it.
Level 9 / Phobos Labs 3
This level has some awesome skips. Again, I skipped getting stuck in the sky tram, but this time I initially got stuck in the door, but if you don’t get completely stuck, you can kind of just spam jump and get out. Then I hitched a ride until the next airlock, where you can actually just save loads of time by platforming before the sky tram gets there. You don’t need your guns there anyways. Normally, when I get up the ladder and into the first door, there is a zombie that blocks the small stairs but somehow, that day, he was moving slower so he didn’t get there fast enough to block me which was really nice.
Going up I used the artifact to rocket jump and get to the door faster, activate the panel, get some HP and rocket jump to the other door as the power is fading away. The ledges are quite tricky which is why I kind of prematurely rocket jump.
I actually skip the elevator since it is slightly faster and more convenient. I also got the rockets after I punched the Revenant. This must be among the darkest areas in the universe. On top of that, it is pain to navigate through. This took a while to get right.
I take the plasma since I missed it in Phobos 2 because I was going to use it in Phobos 1 Revisited. You can’t die from fall damage under ladders for some reason. Great! After the airlock, not getting caught on that rail was pretty precise and I feel like that was the best I could do.
This is an awesome segment. The artifact charge actually lasts too long so I activate is as soon as I get out of the elevator. Then some tricky navigation and a rocket jump without getting stuck on the railing. Bird hunted the Vulgar.
This is also an awesome segment. It looks so awesome to just get boosted like that. :)
Level 10 / Phobos Labs 1 Revisited
The first single-segment level. Just above a minute long. I had to take the BFG ammo for the final boss fight. Somehow jumping into the boxes didn’t seem to waste time. Then another rocket jump. I needed not to waste an artifact charge ending the level so I had to figure out how to do that. If you are fast enough, you can make the Bruiser who is further away not do anything, kill the one that is close to you while you’re waiting for the teleport to activate and then just shield yourself with plasma from the revenant. Neat!
Level 11 / Delta Unknown
The second single-segment level. I feel like I played this one better than the previous one. I have rockets to spare so I use them. It would have been nice if I was able to keep an extra artifact charge but it is still ok. I get all the BFG ammo in the level and then rocket grenade rocket jump to avoid crouch jumping between the rail and the ceiling which is insanely precise, making it terribly inconsistent.
Level 12 / Hell
I needed to take both artifact charges at the start. This segment was purely getting the movement right. I also eliminate all the imps, a cherub and I take the BFG ammo.
I figured out I can use only 2 artifact charges here which was really important. I took my sweet time with this segment and I think it shows. It was done really well.
This was the trickiest movement of the whole run. I still could have done it better. It is also the only time I use rocket boosting. Instead of rocket jumping, you can fire a rocket just before you fall to the ground and hold space to translate it into horizontal momentum. It looks pretty cool as well. I took the BFG ammo at the end.
The final boss fight. Yes, you can actually beat him without using the artifact which is pretty crazy. I was reading up online about the fight and how it works in hopes of making this work. There are 2 separate phases. The first one he has 2500hp and the second 5000hp. So it is redundant if you shoot him a lot during the first phase where he is just flying above the skull and spawning lost souls. You only need to hit him twice with a fully charged BFG, get both fast attacks from him which is luck based and deal damage to him in between. Then the second phase is where he flies over you and spawns fire and then flaps his wings and meteors fall. I hit him while he is flying over me with a rocket. Then I set up a fully charged BFG prediction shot to have time for another one. I fire the third one and the tendril deals a good chunk of damage which seems to be more than a few rockets. Then, as he flies over again I hit him with a fully charged BFG this time, set up another full charge and a few rockets, machine gun and that is just about enough to get him. GG
All in all, this was an enjoyable experience. This run took me a month to complete. It is possible to go under 27 minutes for sure.