Survivor

Mechanics

 * Using a vest gives you temporary Night Immunity.
 * Even if you are not attacked, your vest will be destroyed.
 * When you are transported, your vest will still affect you.
 * If a controls you, you will use a vest instead of visiting anyone, regardless of who they try to target.
 * You will not use your vest if you are role blocked.
 * Whether or not you use a vest, if you are bitten by a, you will turn into a Vampire.
 * Whether or not you use a vest, if you are attacked by a, you will still die.
 * Your bulletproof vest does not protect you from being doused or ignited by an.
 * Survivors still win in the event of a Draw.

Strategy
The Survivor is one of the toughest roles to play despite how easy the conditions might seem. Despite your only goal being to survive to the end of the game, there are several things that could go wrong. Evils might think you're a Neutral Killing trying to get away with a Survivor claim, and the Town doesn't have to consider your existence for their secured victory. However, being a free-willed loner also gives you the advantage of not caring who you win with.

When to use your vest

 * If you feel your life may be at stake one night, be sure to wear the vest and protect yourself. However, if you DO get attacked, you might be called out as Night Immune and be drawn suspicion. If you've claimed earlier in the game, you most likely will be passed off as a Survivor and be left alone. However, if you get doused by an or a  is going to attack you, whether you vest or not won't matter, as your vest does not protect you from those attacks.
 * The more people are left alive, the less the chance that you will get randomly targeted. If you do not plan on claiming Survivor, save your vests until you feel it is too dangerous to sleep unprotected. If you do plan on claiming Survivor, feel free to use a vest or two early to make sure you don't get killed before claiming.
 * A balance between looking suspicious and looking like a Townie should be found. Always say something Day 1, as this will distract the Mafia from attacking you. Say things during chat, but try to not make accusations or say anything that makes you look intelligent or, conversely, makes you look like a childish spammer. Stay in the middle ground and you should avoid attention and save a few vests.
 * If you don't feel safe claiming early in the game because you don't know how many Mafia or Neutral Killing roles there are, then use your vests more often. Usually when you get farther in the game you will know the identities or the presence of any killing roles, and you can claim during that time. Either way safe or not, claiming right on Day 1 and vesting the next two nights usually can prove your innocence if you are attacked by the Mafia to prove your worth. If you aren't attacked and there is an Investigator that checked you during the game that dies, you can be proved that way.

Claiming Survivor

 * Choosing to claim Survivor has become easier after the Investigator results were changed, but if you choose to claim Survivor (before being forced to by a possible Investigator):
 * If there is no Arsonist, you can ask to be jailed. This will prove you are not a Serial Killer or Werewolf. The only problem is that the Jailor most likely won't jail you, or even if you are jailed, the Jailor might execute you instead.
 * Some Townies will lynch Survivors because they don't trust you or to make sure you will not side with their enemies.
 * Remember, ALWAYS consider if you think revealing as a Survivor is worth it. If you really think about it, you are just a neutral to the town. There is no real reason for town members to not lynch you, as for the most part, survivors partner with evil roles. Due to this factor, think about if it's really worth revealing. But you must think fast, as claiming survivor later on in the game is generally more suspicious than claiming earlier.
 * If you do claim Survivor, it is important to help the Town catch the Werewolf, since you will otherwise become the first suspect. (Note: this is not as important as before because of the new Investigation results, but vesting 4 nights in a row will bring suspicion)
 * The Jailor may execute you on suspicion of you being a Witch, Werewolf or even Mafia. If you're jailed before publicly claiming a role, it's usually a bad idea to tell the Jailor you're a Survivor (since, having already wasted their night jailing you, they have little incentive to not just execute you if you're clearly non-Town.) In that situation, come up with a suitable Town role instead, ideally with a fake will. Note that this is just for when jailed -- it is generally a bad idea for Survivors to claim Town roles publicly if they can avoid it (since you also need to avoid getting targeted by the Mafia.)
 * Smart killers are likely to pass you by if they feel that they have more important targets (i.e. everyone else), and the Godfather may see you as a late-game voting asset.
 * Occasionally, someone else may claim Survivor. This person may be an actual second Survivor, a night immune killer, a Jester or even a Townie.
 * If you doubt the existence of a fellow Survivor, make sure to claim your role as well. If you do not, you may get lynched later, since the other claim seems more trustworthy.
 * You can also choose not to challenge their claim and see what happens. If you feel adventurous, you can whisper them about being the real Survivor and ask them not to kill you (in case they are a killer).
 * If you suspect them of being a night killer, you can try to convince the town to lynch them; if you catch a Werewolf this way, you can usually safely reveal that you knew they were lying because you're the real Survivor. This works best, of course, in role-lists where only one or two Survivors are possible.
 * If you do not want to risk being targeted because you are a Survivor, you can choose not to reveal yourself early. Waiting until a Sheriff or Investigator checks you is usually your best bet. When they ask during the day, tell them your role as quickly as possible to avoid accidental lynching.
 * A Transporter is a huge threat to you after claiming Survivor; since they know you're not Town and are unlikely to be attacked, they're likely to transport you with themselves or anyone they think is Town. If there seems to be a Transporter, you may want to avoid revealing as a Survivor; or you may want to start vesting once you do.
 * Generally speaking, it is safer to claim Survivor in All Any, and more dangerous to do so in Ranked. This is because of the different pressures those modes place on the Town.
 * In All Any, the Town doesn't know how many people it has, so it's more dangerous for it to lynch someone who could side with it. Additionally, in All Any, Jesters are more common, making it dangerous to lynch you out of hand.
 * Conversely, in Ranked, the Town generally wins by eliminating possibilities from the role list as quickly as possible - lynching you and making sure that the Neutral Benign role was a Survivor (and potentially establishing what the Any was, if another Neutral Benign is confirmed) is worth more to them than leaving you alive.

After blocking an attack

 * If you are attacked at night, and protect yourself with your vest, your troubles aren't necessarily over; whoever attacked you is likely to reveal that you have night immunity, which will make the Town suspect that you are a Werewolf, Serial Killer, Arsonist, or (if not revealed by the Mafia) Godfather. Any of these suspicions can get you lynched.
 * One option is to immediately reveal that you're a Survivor after being attacked. Claiming after being attacked is generally more risky than claiming at the start of the game, since the Town might assume you're an evil role trying to explain your night immunity; but it still gives you better chances than claiming after you're accused.
 * You can also wait and see; not every attacker reveals immunity immediately (and they may hit another immune, get role blocked, etc, preventing their next death note from getting out for a while.) Reacting too quickly might put you in more danger than just waiting quietly.
 * An alternative option after blocking an attack with your vest is to act like an Executioner; claim Sheriff and accuse someone you think is Town. Your attackers are likely to be evil, and if they think you're an Executioner, they might not reveal you, since Executioners are on their side. This is risky (you could get hung as an executioner or exposed by an Investigator, among other things) but it's preferable to getting hung because the Mafia thought you were a Serial Killer, Werewolf, or Arsonist.
 * You can also claim Bodyguard, since they also have a vest; however, since they only get one, this can be a harder thing to convince the town. It also violates your Investigation results.
 * Claiming you were healed might cloud the issue a bit, but be warned that it will not fool whoever attacked you; people who are healed produce no message for the attacker, while your vest produced a standard "your target was immune" message. Fortunately, Mafia and Serial Killers can't easily explain their accusation and say they got the message, so if anyone points out the discrepancy, you can just say your attacker must not have known or are trying to frame you.
 * You can also claim to have been Transported, but it's usually obvious when there's an active Transporter, and people will generally expect the transporter to step forwards and substantiate your claim anyway.

Who to side with

 * The faster the game ends, the better; you only have four vests, and they can't protect you from everything. Therefore, you usually want to side with whoever can win the fastest.
 * Generally speaking, you want to help vote up anyone who starts getting votes. This ends the game more quickly.  Additionally, should you help vote up a Mafia member, it will usually clear you of suspicion of being part of the Mafia. Avoid voting guilty if there's any risk of a Jester.
 * Helping to vote up an obvious Jester and then abstaining, on the other hand, can be useful; if it works, two people will die, making the game end faster quickly and helping you win. However, be cautious if there's a Transporter, especially if you've publicly claimed Survivor - they may transport the guilt onto you, since you're not a member of the Town.
 * If you claim Survivor, the Town will expect you to vote with them. While the Mafia might kill you if you vote against them, your vests can protect you against Mafia attacks - you can't protect yourself from a lynch. Therefore, once you've claimed, you should usually vote with the Town (and vest afterwards) unless you're certain the Mafia has won.
 * If the Mafia finds you and tries to pressure you to vote with them, try to evaluate how close they are to winning. If they're likely to win immediately with your help, you should probably take it. On the other hand, if they're doing badly, you might be better off exposing whoever contacted you, then vesting against any retaliation.
 * If you're running low on vests, it becomes more dangerous defy the Mafia or to vote up confirmed (or likely) Mafia members; in that case, it might be best to sit back and hope the Town either fails to notice you or loses the majority before it can go after you.
 * Although your bulletproof vest will save you from most attacks, it can't protect you from the Werewolf or Arsonist, while the increased number of attacks from a Serial Killer can make it hard to block everything. Worse, those killers sometimes claim Survivor to explain their Night Immunity, so having them in the game can lead the Town to lynch you. Even though you can theoretically win with them, it's usually to your advantage to help track them down and lynch them as soon as possible.
 * Vampires can bite you to force you to side with them. There is, unfortunately, not much you can do about this; your vests provide no defense, and you don't usually have a chance to aggressively try to eliminate them. (Worse, even if you did, they could bite you before they lose, forcing you to lose with them.) In games where vampire are possible, keep in mind that the "town" in a Mafia vs. Town split may a actually be vampires; in that case, it's usually best to side with them (helping them vote up the Mafia), both to reduce the risk that they'll bite you and so you'll end up on the winning side if they do.