On day 2 of the Big Oil heist the crew is required to steal a fusion engine prototype. In the facility there are multiple prototypes, how do I determine which engine to take as it is time consuming to check each and every one of them?
How to determine correct engine to steal on Big Oil: Day 2
payday-2
Related Solutions
The only ways to open a safe deposit box are
- picking the lock (can be made faster with Lockpicking Expert from Ghost)
- using the saw.
It is worth noting that the saw is a lot quicker, but also a lot noisier.
You cannot open the safe deposit boxes with C4. There is no icon for it and the icon is required to place C4.
Above is an image of the meth lab and where the specific ingredients are placed when cooking. Note that Mu = Muriatic Acid, Cs = Caustic Soda and Hcl = Hydrogen Chloride. (Image source: PAYDAY wiki, "Rats")
In multiplayer, the required ingredient is synchronized across all players, but the dialog from Bain is not.
Other notes:
- Be careful not to grab ingredients too quickly. If you interact with two ingredients of the same kind too fast, you get one ingredient for the price of two. Similarly, if two people add the same ingredient in the lab simultaneously, it will disappear from both inventories.
- Each ingredient is used only once for each bag of meth, but the order is different each time. There are ingredients for a maximum number of 7 meth bags.
Source: The Long Guide by Frankelstner - Rats Day 1 notes
Bain has a number of lines where he's incorrect, though he will correct himself shortly afterwards and state the right ingredient. He also has a multitude of non-unique correct lines for what ingredient to put in.
Bain is wrong when he says:
- Now we need... I'm going with (ingredient). Hold up!
- Uh... mhm...We'll go with (ingredient). Nope, that's not it!
- Alright, next ingredient...(ingredient)? Sorry, that wasn't right.
- Alright, let's see...We'll go with (ingredient). Strike that.
- Hold on... I'm going with (ingredient). Wait a minute!
After saying one of the wrong lines, he corrects himself, saying the right ingredient:
- It's supposed to be (ingredient)! Pour it in.
- It's supposed to be (ingredient)! That should get the process going.
- I messed up. It should'a been (ingredient). That should get it on.
- I messed up. It should'a been (ingredient). Pour it in.
- We need (ingredient)!
- That should'a been (ingredient)! ...unless I've missed something...
- ...(ingredient)?...I'm XX% sure.
- By method of elimination it has to be (ingredient). ...what's the worst that could happen, right?
- My bad. It's (ingredient). Add some.
Bain is right when he says:
- Uh, I hope I got this right... (ingredient)? ...I'm XX% sure.
- Uh. I hope I got this right... (ingredient)? You got any of that lying around?
- Uh. I hope I got this right... We'll go with (ingredient). ...I...think.
- Okay, what's next... (ingredient)? ...I'm XX% sure.
- Okay, what's next... Oh I'm going with (ingredient). ...it's a toss-up, really.
- Okay, what comes after that... We'll go with (ingredient). That should get the process going.
- Okay, what comes after that... (ingredient). That should get the process going.
- Okay, what comes after that... It's (ingredient). That should get it on.
- Uh... mhm... It's (ingredient). ...that's my very best guess.
- Uh... mhm... (ingredient). ...this website better be accurate.
- Uh... mhm... (ingredient). That should get it on.
- Uh... mhm... (ingredient)? ...IF my calculations are correct.
- Uh... mhm... (ingredient)? ...and kiss your lucky charms.
- Uh... mhm... I'm going with (ingredient). Go for it.
- Alright, next ingredient... We'll go with (ingredient). That should get the process going.
- Alright, next ingredient... We'll go with (ingredient). ...I'm XX% sure.
- Alright, let's see... (ingredient). ...I think so, at least.
- Alright, let's see... (ingredient). ...I think so, at least.
- Alright, let's see... (ingredient)? ...yeah... yeah.
- Alright, let's see... (ingredient)? ...I'm XX% sure.
- Alright, let's see... It's (ingredient). ...unless I've missed something...
- Uh, I hope I got this right... (ingredient)? You got any of that lying around?
- Uh, I hope I got this right... We'll go with (ingredient). ...for sure. Or, most likely.
- Now we need... It's (ingredient). ...that's my best guess.
- Now we need... We'll go with (ingredient). ...I'm XX% sure.
- Now we need... We'll go with (ingredient). ...what's the worst that could happen, right?
- Now we need... I'm going with (ingredient). ...these internet descriptions are iffy at best.
- Hold on... (ingredient). I'm XX% sure.
- Uh, if I read this correctly... uh... Oh I'm going with (ingredient). ...I'm XX% sure.
Wrong and right periods have a triple sentence structure. Each of the three sentences are randomly combined. The only reliable sentence that will reveal previous statement right or wrong is the last (i.e.: "...I'm 54% sure").
Correction periods have a double sentence structure. Both sentences will always reveal that the immediate information given is correct.
Examples of last sentences on false previous information:
- Hold up!
- Nope, that's not it!
- Sorry, that wasn't right.
- Strike that.
- Wait a minute!
Examples of last sentences on true previous information:
- ...I'm XX% sure.
- ...I...think.
- ...it's a toss-up, really.
- ...that's my very best guess.
- ...I think so, at least.
- ...this website better be accurate.
- ...IF my calculations are correct.
- ...and kiss your lucky charms.
- ...for sure. Or, most likely.
- ...yeah... yeah.
- ...unless I've missed something...
- ...what's the worst that could happen, right?
- ...these internet descriptions are iffy at best.
- Go for it.
- You got any of that lying around?
- That should get the process going.
- That should get it on.
Source: PAYDAY wiki, "Rats - Cooking"
Related Topic
- Payday 2 – How to Stealth the ‘Framing Frame’ Heist
- How to you complete the guessing game achievement on PC
- How to stealth Big Oil : Day One
- What do I have to do to unlock the “Train Heist” level
- What are the possible locations of the notebook and clipboard in Big Oil: Day 2
- How to determine the correct truck on Election Day: Day 1
- Is it possible to tell if the Gangsters will backstab you on Day 2 of rats
- Payday 2 – How to Find the Correct DNA Files in Hoxton Breakout Day 2
Best Answer
On the second day in Big Oil, there are 3 hints that can be found on the map.
The first hint is on the computers in the lab, one of the computers will have an inequality symbol (≤, ≥, <, or >) and a value in PSI. You must take that number and multiply it by 0.07 (approximate, accuracy really doesn't matter too much). This will give you the reading to look for on the pressure dial of each engine. The PSI value seems to be close to 400 BAR every time, so it is more important to look for the inequality symbol.
The second and third hints are found on clipboards around the house. One will list the type of gas used, Nitrogen, Deuterium or Helium. Each gas will be a different colour, as seen on a whiteboard in the lab: yellow (Nitrogen), blue (Deuterium, spelled incorrectly on the whiteboard), and green (Helium). You must find the clipboard, match the colour, and find that colour tank on the engine.
The last hint is the number of cables connected to the large blue (hydrogen) tank. The clipboard for this hint will list the CAS ID for hydrogen, molecular composition, molar weight, and other details, but what you are looking for will show up slightly larger and at the bottom. It will either be "H", "2xH", or "3xH". You match the multiplier to the number of hoses attached.
Now, not all the hints will be present in any given instance of Big Oil, so you may have several potential candidates, tough luck. You will have to guess at one or a few and bring them all to the helicopter.
One last note, not entirely related, but the intel you can retrieve on day 1 is not be particularly useful to solving the puzzle, but may make life easier for the team. The most useful intels are the airplane keys to provide an alternate, no waiting escape; a keycard, to get into one of the potential server rooms without drilling/jamming/ECM; and the shutter codes, which are used to open the shutter in the server room, if present, and to close the outside shutters for greater cover if/when you alert the police. Other possible intels include exterior blueprints of the house (doesn't change from heist to heist, doesn't list server room), a page of research (could be relevant, no idea), and pictures of the guards or the scientist (if you can't tell what a person looks like, you shouldn't be playing payday, let alone any other game; the scientist wears a lab coat, go figure).
Good luck, go get paid.