Step 1. Kill all zombies in Yard with headshots or melee for 2 rounds
Step 2. At the end of round 2, when round 3 is starting, you want to head to the penthouse and stay there till you have 8.5k points (try to get a Semtex grenade and stims)
Step 3. When you reach 7k-8.5k points you want to turn power on (kill all the zombies except one while turning on the power) and get pack-a-punch ready. When getting the PaP part, you want to get the fuse if the Aether travel is in med-bay and buy stamin-up.
Step 4. activate the coffin dance and go to the top and start breaking crystals. (collect the fuse if you havent already) You now want to get the D.I.E Machine out of the coffin, if you didn’t get it you want to quit the game and do the first 4 steps over again.
Step 5. Enter the Dark Aether in the main power. (if you didn’t get the anomaly in main power you want to quit the game and do the first 5 steps over again.) and get all the parts for the Aether Scope.
Step 6. When you get all the parts for the scope (PaP-Yard-Airplane) you want to head down to the plague hound gas collector opening the door and kill at least one close to it so it starts sucking in the gas.
Step 7. Enter the anomaly in med-bay, get the diary and start all 3 anomalies.
Step 8. While waiting for the 3 anomalies to stop talking, you want to head through the traveling pipe in PaP area to go and shoot down the beaker and suck in the empty gas container. (if you can you also want to shoot the fungus with Maya or a normal megaton, but this is hard to do) oh and round 8 should be starting
Step 9. Input the password and head down to the swamp,(if you haven’t gotten the fungus purple, do it now) activate the Anomaly, go down the travel pipe under the armored tank, collect the hound gas and start cutting the box with the fuse.
Step 10. Enter the anomaly under Pap to start sucking in the crystals.
1st Crystal: Go up the PaP travel pipe and shoot 1 shot run to the penthouse and suck in the crystal get D.I.E Nova-5. Go through the travel pipe to get to med-bay and shoot the box. 2nd Crystal: Run to med-bay and shoot the upper left stick with nova-5 (looking west). Go through the Travel pipe in the showers and go and collect the filled flask and start sucking in the crystal. get D.I.E Thermophasic Head down to the box through the living room and shoot it 3rd Crystal: Run to med-bay and shoot the upper right stick with Thermophasic (looking west). [you can freeze the chains now but don’t pick it up] Run to the final crystal by jug and suck it in. (you should start to phase back when you start sucking it in.) go to the box and shoot it.
Step 11. Get D.I.E Electrobolt, run to med-bay and shoot the bottom right stick with Electrobolt (looking west).
Step 12. Get D.I.E Cryo-Emitter and shoot the bottom left stick with Cryo-Emitter (looking west).
Step 13. Go into the anomaly close to med-bay and activate the anomaly to get the wrench. Go and get Electrobolt
Step 14. Take the wrench, knock on the tank in the yard 3 times, kill the zombie that pops up, remember the Semtex? throw the Semtex at the tank and it should fire. (c4 and frag works too)
Step 15. Pick up the decontamination agent and run/walk with it back to med-bay. Running onto the wing and jumping off will slow down the dogs for 3 sec. looking backward heading down to med-bay speeds you up
Step 16. Split the megaton and make it go into the chamber.
Step 17. As soon as he gets free, you want to run to the living room to activate the anomaly, open the door to the yard during the travel animation, activate the anomaly, and kill everything in the yard, except 1-4 zombies so you don’t end the round. (you can buy a sentry here to help in the boss fight)
Step 18. Pick up the family photo to activate the boss fight.
Step 19. Before going down to Olav, you want to get rid of some of the dogs since when killed close to him he will go into a “taking damage” animation slowing down the time.
Step 20. If you have the ring of fire, you want to use it in the first wave, spare it on the second wave (you use sentry gun here) and use it again on the 3rd wave standing to the left of Olav (making all of the zombies attack only you)
Step 21. So you have successfully destroyed the atom-smasher at Projekt endstation. Now you want to go to the door to Deadshot, wait for the walls to collapse, and run to the hanging bomb, jump over the gap in the middle to the left. Go a little further and mantle the stairs, exit to the right, and kill 3-7 zombies coming through the entrance to the tunnel. Now just avoid the tornadoes and kill zombies till Raptor one lands.
Congratulations, you just finished your speedrun. Or maybe you just did this to do the easter egg early so the boss fight isn’t as hard.