🕐 12:00am "Meet Isabela" call. (Do NOT be where you are supposed to meet her at midnight — Otis will call to remind you to meet her.)
After this call you can go meet her.
"A Strange Group" call.
After meeting with Isabela you will need to defeat the zombie that attacks her and then carry her back to the security room. When you leave, Kindell should be outside shotgunning zombies down. Talk to him a few times to convince him to go with you — he is a great help here, because you can just keep running with Isabela and he can shoot his way through most anything. I recommend taking Leisure Park back, since you'll be near the park entrance in the North Plaza. Oh, and don't forget to photograph Kindell sometime.
🕐 1:30 You need to be somewhere else besides the security office at 3 to get a call to return there, which isn't a lot of time. However, before that you'll get a call to bring Floyd some wine, so while you have a little down time you might as well make a quick run across the park to the Food Court to grab a bottle of wine. Once you've got it, head back to the Warehouse.
🕐 2:00 "Floyd the Sommelier" call.
🕐 3:00 "Isabela Awake" call.
Once you have the call that Isabela has awoken, make your way back into the Security Room to see Isabela. At this point Barnaby will die, and you will sacrifice him as a survivor so that you can get Simone to show up later.
Note: at this point, I've read many things that said to stop doing the main cases to best get the achievements. However, this didn't work for either of us — so I say you must keep going. After Bomb Collecting there will be an Otis call if you are not at the Security Room at 5; that is where we both got Transmissionary, not by stopping here.
Second note: if you have never finished Overtime mode before, you will be able to do that and still get 50 survivors, granted you have saved every single person up to this point. If you've missed any, you'll fall short, because doing Overtime mode means you lose Jessie, Brad, and Ed as survivors. If you stop the cases now you will not get Brad or Isabela, which means the total number of survivors in the game is 51 at this point. So you could still get Saint in this playthrough as long as you haven't missed more than 1 of the possible survivors.
🕐 3:15 With that taken care of, find Floyd and give him his wine, then head to Movieland to take care of the Raincoat cult. At this point Movieland is nicely void of zombies, but around the corner there are far too many cultists for comfort. Hack through them all with a Chainsaw and enter Theater 4. In here you will find Sean.
Take a photo of Sean if you need to and hack him down with your Chainsaw — he'll fall plenty quick. Now, before worrying about the survivors, head to the back of the theater and take care of the final group of cultists that is slowly making their way in. Once you've cleared them, you're done dealing with the cultists!
There are 4 survivors you'll have to free from chairs here, and then the lovely Cheryl is in a door off to the side that you got the key to. She'll take some extra convincing, but all the others will join when you free them. There is also a book on the ground by Sean that is probably worth picking up, to give your survivors some extra courage. Once you have all 5 survivors (and photos of them), head back to the Security Room with them.
🕐 4:30 Note: my friend didn't get this call until 6, maybe due to having too many survivors already spawned, but after the big delivery of the Strange Group people you should definitely get this call.
"Long Haired Punk" call.
Head over to Wonderland. If you are in good time (before 7), definitely save here, because it's easy to let Paul die, which you can NOT let happen!
Enter "Casual Gals" (W102) to find Paul. You can easily kill Paul before he even attacks you once, but make sure you get a picture of him before doing so if you need Psychopath photos. Paul is special because after "defeating" him he is no longer a Psychopath, but turns into a survivor! However, you have to be quick to save him. Grab the nearby Fire Extinguisher and do your best to spray it on him — this is the reason I say to definitely save before doing this, since sometimes you think you're spraying him and apparently you're not at all.
If you spray him enough, though, you will put out the fire and Paul will join you. Now take a picture again to get him as a survivor. If Paul dies you HAVE to reload to get him — he's not just a dead survivor, he'll cost you the Transmissionary achievement too, because he has a special call later. Before leaving, make sure you also grab the two girls that he had held hostage in the back room and take their pictures too. I also recommend giving Paul some food, because his health is probably considerably low from that fire.
🕐 6:45 Before heading back to the Security Room, head down into the Food Court. You will not have gotten a call about him, but Gil should be downing wine, waiting for the angels to take him away. You'll have to talk to him a few times, and then when you begin to walk away he'll decide to join you. Get his photo and just hang out until 8.
🕐 8:00 "A Sick Man" call.
Once you get this call, head back into Wonderland — Leroy will be immediately to the right in the Cosmetics shop. Get him to join your party, get his photo, and then get all of your current survivors (Gil, Paul, Debbie, Leroy, and Mindy) back to the Security Room.
🕐 10:00 Once they are all safely returned, make your way back to Wonderland again — technically we could have waited there before, but we are getting close to the end now and aren't as crunched for time, so there's no reason to just wait around. When you get back, Susan should be on top of the big soccer ball down by the Food Court. If you have somehow made it here before 9 she may not be — but if you got here that fast you should be writing up your own strategies.
If you have a bee with you, you can literally throw it at Susan and it will kill practically every zombie around her. If not, just go nuts with your saw until they're gone. Jump on the ball and talk to Susan to get her to join. She's a pretty good survivor — with just her, it's safe to hold her hand and just book it back to the Security Room. If you get back before 11, just wait in the elevator in the Warehouse until you get the next call, then get Susan back to safety.
🕐 11:00 "Isabela Call" call. (Do NOT be in the Security Room at this time!) After this, just hang out by Columbian Roastmasters in Paradise Plaza.
🕐 12:00pm
At this time you'll have your final showdown with Kent — he is now officially a Psychopath and you will need to defeat him. So get your photo of him and take him down. With him is the survivor Tad, whom you can save once the battle is over. Also, during the battle, you may receive the following calls, which you'll want to make sure you answer:
"Kindell's Betrayal" call.
"A Woman in Despair" call.
If you didn't get #34 during/after the fight, go over to the Warehouse entrance and enter it — you should get the call right away. The problem is that this call is about Simone, who is in Paradise Plaza, so if she didn't spawn before/after the fight, she will when you leave.
Simone is in "Players" (P103) on the first floor — there is a nice, mainly zombie-free zone outside of this where you can put a waypoint for Tad while you talk to her. Talk to her a few times and she will join you, in the hope of Isabela being able to cure her. If you didn't do the cases up to where I said to, she will either a) not even spawn, or b) refuse to join you because you don't know Isabela can cure her.
Once you've got both of them, make sure you get their photos and return to the Security Room with them. While you are here, make sure you talk Kindell out of his betrayal — this is critical to completing the game. Just keep talking to him until the mutiny is averted.
🕐 1:00 Getting close to the end now — there are only 3 more survivors for you to get. When you leave the Security Room this time, make sure you get a photo of the Air Duct on the roof — when you take the picture it will say "Air Duct" as the subject. Now make your way over to the North Plaza, back to the "Huntin' Shack" (N127).
Don't go rushing in! There are 3 people in here who will shoot at you when you enter — the closer you stay to the door, the easier it will be for you to get out once they start (or for their bullets to eventually push you out the door). Once they see that you've walked out, Jonathon will come out and begin talking to you. Eventually he'll want proof of where you are going to take them — at which point, if you have the Air Duct photo, Frank will show it to them and they will join. Be careful not to wander into the shack while talking to Jonathon, because they'll all start shooting at you when you do!
Get their photos and you should now have 50 survivor photos! If you don't (and didn't get the achievement), don't fret — recharge your camera on the way back to the Security Room with these guys and just start taking photos of everyone in the rooms, including Jessica, Isabela, Otis, and Greg. Somewhere during this you're bound to get the achievement.
Once they've all joined you, get them back to the Security Room, and that will be the last of your survivor escorts! The Saint achievement will not pop up now, but will pop up after the credits when you get the end game stats — just so you know. You also must get an ending, so you cannot end the game now, plus there are still more Otis calls to answer.
🕐 5:00 "Paul's Present" call.
"Jessie's Worried" call. (Do NOT be in the Security Office at 5 to get this.) Many things I've looked at said you don't need this one, but we both definitely needed this one.
You can now do all of the remaining cases if you choose to, but you don't have to. However, if you go back to the Security Room now, the next case will begin no matter what. After that you'll have to talk to Isabela to start the following case. If you want to complete the survivor requests (which you will need to do to acquire Saint), head back now and go talk to Paul to get his infinitely spawning Molotov Cocktails.
Afterwards, make your way to Wonderland and get one of the guns from the cops by the Space Ride (or go somewhere else and get a gun — the point is you'll need a gun in the near future).
🕐 7:00 "Simone's Request" call.
🕐 8:00 "Cheryl's Request" call.
If you've done everything up to here you will get the Transmissionary achievement now! That's all 39 of Otis' calls! (Yes, 39 — remember, I numbered the Maintenance Tunnels intro as 0.)
Now head back up to the Security Room Office and talk to Paul to get the Molotov Cocktail from him, talk to Simone and give her the gun, then talk to Cheryl — you'll have to take a bunch of sexy photos of her.
Once you've done all these things, you've done pretty much everything the game has to offer outside of the main storyline (if you haven't completed that previously), and you have quite a bit of time left to spare. In this time you can do whatever you want — just make sure that you are at the heli-pad at noon, or else you won't get ending B and you won't get your Saint achievement.
Here is a list of things you can do if you haven't already, in this leftover time:
See the Achievements section for how to knock these out.
Congratulations and thanks for reading this guide!