Resident Evil

This achievement can be obtained in two different ways.

First method. During your first encounter with Yawn in the attic if you are poisoned Rebecca will come to your add when you leave the room. Chris will faint and Rebecca will come in and take over. At this point you have to go to the medical room with as Rebecca to get the serum and take it back to Chris.

Second method. If you allow Richard to die from his injuries in the first sweep of the Mansion you will have the opportunity to create the V-Jolt to defeat Plant 42. You will find a report titled “Plant 42 Report” in room 002 of the Residence. This is the same room with the ladder down to the Aqua Ring. Some people say this is required to activate the Rebecca side quest and some people argue it is not. I recommend grabbing it anyway since you will run right past it on more than one occasion. When you enter the Plant 42 room a cut scene will occur and Rebecca will barge into the room. Chris will throw her the book to make the V-Jolt and you will take over as Rebecca. Go over to the room on the right with the electronic lock. The combination can be found in the break room by looking at the pool balls and checking the corresponding color and symbol of the oil lamps located throughout the room. However that would mean more time with the two giant spiders so just keep putting in different permutations of 3, 5 and 6. Once you are in the room go ahead and pick up three of the bottles. You will notice the solution to this puzzle has been scrawled into the wall next to the door. We have to use the two chemicals and water to make the V-Jolt, or UMB-20. Each of the chemicals and water has a number.

Water – 1
Red – 3
Yellow – 6

There are numerous ways we can make a sum of 20 with these numbers but going out of order will create toxic fumes so let’s do it the right.

1. Fill a bottle with Red (3)
2. Fill a bottle with Water (1)
3. Combine Red (3) and Water (1) to create UMB-4 (4) (Pinkish maybe??)
4. Fill a bottle with Yellow (6)
5. Mix (4) with Yellow (6) to create Orange (10)
6. Fill a bottle with Yellow (6)
7. Fill a bottle with Water (1)
8. Combine the Yellow (6) and the Water (1) to create Green (7)
9. Combine Green (7) and Orange (10) to get Blue (17)
10. Fill a bottle with Red (3)
11. Combine Red (3) with (17) to get Brown (20)
12. You now have UMB-20, also known as the V-Jolt

Now take the V-Jolt to the Aqua Ring. Since the water is drained you will have to go all the way around and back up through the control room. Then head to the back of the ring where the guard room is. Enter and use the V-Jolt. Plant 42 will wither and you will resume control of Chris. Defeat Plant 42 however you see fit and the achievement will pop.

playing as chris when you first meet yawn (giant snake) in the attic let it bite you so you get poisoned then kick its ass with the shotgun after you leave the attic you will be overcome with venom then have to take charge of Rebecca then simply run to the room highlighted on the map get the serum and take it back to chris...job done